This list includes 63 Legal terms that start with B, from “Bail” to “Bylaw”. These entries span procedural rules, statutory phrases, and doctrinal concepts used across criminal, civil, and administrative law.

Legal terms that start with B are concise legal labels and doctrines used to describe rights, procedures, and obligations. For example, “bail” traces to medieval English practice and still shapes modern criminal procedure worldwide.

Below you’ll find the table with Term, Definition, Etymology, Jurisdiction, and Notes.

Term: What the entry is called; use it to find the exact word you need quickly in study or practice.

Definition: A concise legal meaning and typical use that helps you understand how the term functions in law.

Etymology: Brief origin details showing root language and historical usage, which help you remember and contextualize the term.

Jurisdiction: Notes on where the term is commonly used or varies by country, so you know which rules apply to your work.

Notes: Practical pointers, notable cases, or related terms to explore next, helping you follow up or prepare for exams.

Legal terms that start with B

TermCategoryMeaningEtymology / Origin
BailProcedureTemporary release from custody pending court appearanceOld French, medieval
BailmentPropertyDelivery of personal property for safekeepingOld French/Latin, medieval
BailiffCourt officerOfficer who enforces court orders and maintains courtroom orderMiddle English, medieval
Bail bondProcedureSurety guaranteeing defendant’s court appearanceEnglish, 19th century
BankruptcyInsolvencyLegal process resolving insolvency and creditor claimsOld French/Latin, 14th century
Bankruptcy trusteeAdministrationCourt-appointed official managing bankruptcy estateEnglish, modern
BatteryTort/CrimeIntentional harmful or offensive physical contactOld French/Latin, medieval
BeneficiaryTrust/WillPerson entitled to receive benefits or propertyLatin beneficia, medieval
Beneficial ownerProperty/CorporatePerson who enjoys substantial benefits/control of an assetLatin/Old French usage
Beneficial interestProperty/TrustEquitable right to benefit from property owned by anotherLatin/Old English
BequestEstateGift of personal property under a willMiddle English, medieval
BenchCourtJudge or collective judges presiding in courtOld English, medieval
Bench warrantProcedureArrest warrant issued by a judge for nonappearanceEnglish, common law
Bench trialProcedureTrial decided by a judge without a juryEnglish, common law
Bench opinionJudgmentJudge’s on-the-spot court ruling or explanationEnglish usage
Beyond a reasonable doubtEvidence standardHighest standard for criminal convictionEnglish common law
BifurcationProcedureSplitting legal issues/trials into separate partsLatin/medieval usage
Bilateral contractContractAgreement creating mutual obligations for two partiesLatin roots, civil/common law
BillLegislationProposed law presented for legislative approvalOld English/Latin, medieval
Bill of attainderConstitutionalLegislative act punishing an individual without trialEnglish, early modern
Bill of exchangeCommercialNegotiable order to pay money on demand or dateFrench/Latin, medieval commerce
Bill of ladingCommercialDocument acknowledging receipt and terms for shipped goodsMedieval maritime law
Bill of particularsProcedureDetailed statement clarifying charges or claimsEnglish common law
Bill of rightsConstitutionalDocument or statutory protections of individual rightsLatin/English, modern
Bill of saleTransactionsDocument transferring ownership of personal propertyEnglish common law
Bill of creditCurrency/ConstitutionalPaper money or government-issued promissory noteEarly modern English
BinderInsurance/ContractTemporary insurance agreement pending formal policyEnglish, 19th century
BlackmailCrimeExtortion by threats to expose or harm unless demands metEnglish, 16th–17th century
Black-letter lawDoctrinalWell-established, widely accepted legal principlesMetaphorical late 19th century
Blue pencil doctrineContracts/RemedyCourt power to sever illegal contract parts and enforce remainderMetaphorical editing term, 19th century
Blue lawStatuteLaw restricting activities on Sundays or religious daysColonial/English origins
Blue sky lawsSecuritiesState laws regulating securities offerings and fraudU.S. early 20th century
Blank endorsementNegotiable instrumentsEndorsement not specifying payee, making instrument negotiableEnglish commercial law
Blanket lienSecurity interestSecurity interest covering multiple assets of debtorCommercial law term
BondSecurities/SuretyDebt instrument or guarantee securing performanceOld French/Latin, medieval
BondholderSecuritiesPerson or entity holding a bond/securityEnglish, modern
Boot (tax)TaxNon-like-kind property or money in exchange transactionsInformal legal term
Bona fideDoctrineIn good faith; genuine or without fraudLatin, classical
Bona fide purchaserPropertyBuyer who purchases in good faith without notice of defectsLatin phrase
Bona vacantiaPropertyOwnerless property reverting to the state or crownLatin, medieval
Bona fide occupational qualificationEmployment lawPermitted employer job requirement based on authentic necessityLatin phrase, 20th century
Border searchProcedureSearch at national boundary without warrant requirementModern statutory/common law
BorrowerFinance/ContractPerson or entity receiving funds under loan termsOld English, medieval
BreachGeneralFailure to perform a legal duty or promiseOld English, medieval
Breach of contractContractViolation of contractual obligation by a partyEnglish common law
Breach of fiduciary dutyTort/EquityFiduciary’s failure to act loyally or in beneficiary’s interestLatin/English
Breach of the peaceCriminal/Public orderConduct disturbing public order or tranquilityEnglish common law
BriefProcedureWritten legal argument presented to a courtOld French/Latin, medieval
BriberyCrimeOffering, giving, or receiving improper payments to influence actionsLatin/Old French, medieval
Brandeis briefProcedure/AdvocacyBrief emphasizing social-science evidence and policy impactNamed after Justice Brandeis, early 20th century
BrokerAgency/FinanceAgent who arranges transactions between buyers and sellersOld French/English, medieval commerce
Broker-dealerSecuritiesFirm acting as broker and dealer in securities transactionsU.S. securities term
Brownfield? (excluded)
Burden of proofEvidenceObligation to prove disputed facts in a caseLatin/common law
Burden of persuasionEvidenceDegree to which a party must be convinced on an issueEnglish common law
Burden of productionProcedureObligation to introduce sufficient evidence to survive a motionEnglish common law
Burden shiftingEvidenceWhen burden moves between parties based on proof or presumptionEnglish common law
Business entityCorporateOrganizational form for carrying on business activitiesLatin/English modern
Business judgment ruleCorporateJudicial deference to directors’ reasonable business decisionsU.S./common law development
Business tortTortWrongful acts harming a business’s economic interestsModern commercial law
Buyer in ordinary courseSalesBuyer who purchases goods in regular market without notice of claimsUCC/common law
BylawCorporate/GovernanceInternal rule governing operations of a corporation or organizationMedieval English
Black-letter lawDoctrinalClearly established legal principles (see also “Black-letter”)Metaphorical term

Descriptions

Bail
A court-ordered release on security or conditions; helps balance public safety and defendant liberty in many jurisdictions.
Bailment
A relationship where one party temporarily holds another’s goods; important in storage, shipping, and commercial transactions.
Bailiff
Court employee who executes summonses, enforces judgments, and keeps order; role varies by jurisdiction and court level.
Bail bond
A surety contract—often via a bondsman—used to secure release; common in U.S. criminal systems but regulated differently worldwide.
Bankruptcy
Court-administered process for reorganizing or liquidating debts; affects creditors’ priorities and debtor discharge rights.
Bankruptcy trustee
Trustee collects assets, administers distributions to creditors, and may operate debtor’s business in bankruptcy proceedings.
Battery
A crime and tort involving unconsented contact; civil victims can seek damages, criminal courts may impose punishment.
Beneficiary
One who receives property, payments, or advantages under a will, trust, insurance policy, or contract.
Beneficial owner
The natural person with ultimate control or benefit of property or shares, crucial for anti-money-laundering and corporate transparency.
Beneficial interest
An equitable stake in property (e.g., trust beneficiary); distinguishes legal title from equitable benefit.
Bequest
A testamentary transfer of personal items or money; commonly used term in wills and probate practice.
Bench
Refers to the judge(s) rather than the jury; “the bench” decides law and, in bench trials, facts.
Bench warrant
Issued when a party fails to appear or obey court orders; used to compel attendance or punish contempt.
Bench trial
Parties may opt or be ordered to have a judge determine facts and law; common in complex or equitable disputes.
Bench opinion
An oral or short written decision delivered from the bench, often followed by full opinion later.
Beyond a reasonable doubt
The prosecution’s required proof level in criminal cases in many systems; protects against wrongful conviction.
Bifurcation
Courts may separate liability and damages or criminal and sentencing phases to improve efficiency or fairness.
Bilateral contract
A common contract type where each party promises performance in exchange for the other’s promise.
Bill
Draft statute introduced in a legislature; becomes law when enacted and is central to statutory development.
Bill of attainder
Prohibited by many constitutions (e.g., U.S. Constitution) because it bypasses judicial process and due process protections.
Bill of exchange
Common in trade and finance: a written instruction directing payment between parties; basis for checks and drafts.
Bill of lading
Transfers title and evidences carriage contract; key in shipping, insurance, and goods transactions.
Bill of particulars
Used to require more specific allegations or charges; helps parties prepare for trial.
Bill of rights
Enumerated civil liberties in constitutions or statutes, central to constitutional law and civil rights litigation.
Bill of sale
Written evidence of sale of goods or chattels; useful for proof of ownership and tax purposes.
Bill of credit
Historical term for government-issued notes; appears in constitutional restrictions in some countries.
Binder
Short-term coverage evidence used by insurers pending issuance of a formal policy; important in risk management.
Blackmail
A criminal offense involving coercion for gain; prosecutable and relevant in both criminal and civil remedies.
Black-letter law
Refers to clear statutory or case law rules students and practitioners rely on for fundamental principles.
Blue pencil doctrine
Enables courts to remove unenforceable clauses (like overbroad covenants) while preserving valid parts.
Blue law
Historic laws limiting commerce on certain days; many have been repealed but remain in some jurisdictions.
Blue sky laws
State-level securities statutes designed to prevent speculative or fraudulent investments in securities.
Blank endorsement
A signature on a negotiable instrument that enables transfer by mere delivery; affects rights and liability.
Blanket lien
A creditor claim against all or many of a debtor’s assets, common in secured lending.
Bond
Can mean debt securities or a surety guaranteeing obligations; central in finance, public works, and court procedures.
Bondholder
Investor entitled to interest and principal under bond terms; has priority rights in insolvency contexts.
Boot (tax)
Taxable extra value received in exchanges (e.g., in-kind swaps); important in tax-deferred exchange rules.
Bona fide
A widely used legal phrase indicating honest intent or genuine status, relevant across contracts, trusts, and property.
Bona fide purchaser
A protected purchaser who pays value and lacks notice of prior claims; often insulated from prior equitable claims.
Bona vacantia
Used chiefly in common-law systems to describe unclaimed estates or property that passes to the state.
Bona fide occupational qualification
Narrow exception allowing certain job qualifications tied to business necessity, often limited by anti-discrimination law.
Border search
Governments often have expanded search powers at borders; constitutional protections can be narrower than interior searches.
Borrower
Party who takes funds or goods under an obligation to repay; key term in lending agreements.
Breach
Core concept across contract, tort, and statutory law; determining breach triggers remedies and enforcement.
Breach of contract
Occurs when a promise is unfulfilled; remedies include damages, specific performance, or rescission depending on jurisdiction.
Breach of fiduciary duty
Serious claim arising when trustees, directors, or agents misuse trust or duty, leading to restitution or damages.
Breach of the peace
Often used in UK and Commonwealth law to address public disturbances; definitions vary by jurisdiction.
Brief
Core litigation document explaining legal and factual grounds; crucial for appellate and trial advocacy.
Bribery
Criminal offense in public and private sectors; anti-corruption laws impose penalties and corporate compliance obligations.
Brandeis brief
Introduced empirical and policy materials into legal briefs, influencing modern appellate advocacy.
Broker
Intermediary who facilitates deals for commission; duties and liabilities vary by agency and securities law.
Broker-dealer
Regulated in securities markets; subject to registration, recordkeeping, and fiduciary rules.
Brownfield? (excluded)
Burden of proof
Determines which party must persuade the factfinder; standard varies by civil or criminal context.
Burden of persuasion
Often equated with the proof standard (e.g., beyond reasonable doubt, preponderance of evidence).
Burden of production
Also called burden of going forward; affects which party must present evidence at each stage.
Burden shifting
Common in discrimination and some statutory schemes where initial prima facie proof shifts evidentiary duties.
Business entity
Includes corporations, partnerships, LLCs; choice affects liability, taxation, and governance.
Business judgment rule
Protects directors from hindsight liability if decisions made in good faith and with reasonable care.
Business tort
Includes unfair competition, interference with contract, and fraudulent misrepresentation claims.
Buyer in ordinary course
Protected purchaser under sales law who takes goods free of certain prior security interests or claims.
Bylaw
Corporate internal regulations adopted by boards or members; important for governance and procedural compliance.
Black-letter law
Concise authoritative rules often cited in textbooks and exams; useful for quick legal reference.
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