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Legal Dictionary: Plain-English Definitions of Legal Terms

What the words in a court filing actually mean, in plain English — from everyday terms like plaintiff and motion to the Latin abbreviations that trip everyone up.

Browse Legal Terms A–Z

Jump straight to any of the 62 terms below.

What Does ‘Sustained’ Mean in Court?

When a judge agrees with an objection and rules that the question, answer, or evidence is not allowed. It is the opposite of 'overruled.' You hear it when a lawyer objects to a question or a piece of evidence: if the judge says “sustained,” the objection wins and the jury will not hear the answer; if the judge says “overruled,” the objection loses and the matter proceeds. The two words are simply the judge’s ruling on the objection, not a comment on who is winning the case.

Et Seq., Et Ux., and Other Latin Abbreviations

Legal writing keeps a handful of Latin abbreviations that look cryptic until you know them. Et seq.abbreviation of the latin 'et sequentes' ('and the following'). it signals that a citation covers a starting section and the sections that follow it. Et ux. abbreviation of the latin 'et uxor' ('and wife'). an older convention in case names and deeds meaning a named person and their spouse. Et al. abbreviation of the latin 'et alii' ('and others'). used in a case name or list to show there are additional parties beyond the one named. And inter alia latin for 'among other things.' lawyers use it to signal that the items mentioned are examples, not a complete list. None of them are magic words; they are just shorthand that has survived in citations and case names.

Estoppel and Equitable Estoppel, Explained

A legal principle that stops a person from asserting something that contradicts what they previously said or did, especially where another party reasonably relied on it. A closely related idea, equitable estoppel, a form of estoppel that prevents a party from going back on their words or conduct when another party reasonably relied on them and would be harmed by the change. The common thread is reliance: the law will not let someone change their story to another person’s detriment after that person reasonably counted on the first version.

Plaintiff, Defendant, and Other Courtroom Roles

Cases are named after the parties, so it helps to know the roles. The plaintiff is the party who starts a civil lawsuit by filing a complaint, claiming that another party caused them harm and asking the court for a remedy. The defendant is the party being sued in a civil case or charged in a criminal case; the defendant responds to the claims or charges brought against them. On appeal the labels shift: the appellant brings the appeal and the appellee defends the decision below. You will also see pro se parties, who represent themselves, and counsel, the lawyers. The full set is in the glossary below.

Legalese vs Plain English: Why Legal Writing Reads That Way

Legal language sounds foreign for real reasons, not just tradition. Some terms are precise words of art whose meaning has been settled by centuries of cases, so lawyers keep them to avoid ambiguity. Others are Latin or old French survivals that stuck. And some dense phrasing is simply habit that plain-language reforms are slowly eroding. Knowing the vocabulary is the fastest way through: once “sustained,” “estoppel,” and “et seq.” stop being mysterious, most filings become readable. To go deeper on how the law is actually made and cited, see what case law is.

The Glossary, by Category

Parties & Roles

Amicus Curiae
Latin for 'friend of the court.' A person or organization that is not a party to a case but files a brief to offer information or a perspective the court may find useful.
Appellant
The party who appeals a lower court's decision, asking a higher court to review and change it.
Appellee
The party on the other side of an appeal, who generally wants the higher court to uphold the lower court's decision. Also called the respondent in some courts.
Counsel
Another word for a lawyer or the lawyers representing a party. 'Of counsel' describes an attorney affiliated with a firm in a limited or ongoing advisory role.
Defendant
The party being sued in a civil case or charged in a criminal case; the defendant responds to the claims or charges brought against them.
Petitioner
The party who begins certain court proceedings by filing a petition — for example, an appeal or a family-law matter. The opposing party is the respondent.
Plaintiff
The party who starts a civil lawsuit by filing a complaint, claiming that another party caused them harm and asking the court for a remedy.
Pro Bono
Short for the Latin 'pro bono publico' ('for the public good'). Legal work that a lawyer provides for free, usually to clients who cannot afford to pay.
Pro Se
Latin for 'for oneself.' A person who appears in court representing themselves, without a lawyer, is proceeding pro se.
Respondent
The party who responds to a petition, such as an appeal or a request for a court order. It is the counterpart to the petitioner.

Court Procedure

Class Action
A lawsuit brought by one or a few people on behalf of a larger group who share a similar claim, so the group's cases can be decided together.
Contempt of Court
Conduct that disobeys or disrespects a court's authority, such as ignoring a court order or disrupting proceedings, which a judge can punish with fines or jail.
Continuance
A postponement of a court date to a later time, granted by the judge for reasons such as needing more time to prepare or the unavailability of a party.
Docket
The official running list of everything filed and every event in a case, in date order. A court's docket is also its overall schedule of cases.
Jurisdiction
A court's authority to hear a particular case — both over the subject matter and over the people involved. A court without jurisdiction cannot decide the dispute.
Motion
A formal request asking the court to make a ruling or take an action, such as dismissing a case or excluding evidence. The other side usually gets a chance to respond.
Overruled
When a judge rejects an objection and allows the question, answer, or evidence to proceed. (The same word also describes a higher court rejecting an earlier precedent.)
Summary Judgment
A ruling that decides a case, or part of one, without a full trial because there is no genuine dispute over the key facts and the law favors one side.
Sustained
When a judge agrees with an objection and rules that the question, answer, or evidence is not allowed. It is the opposite of 'overruled.'
Venue
The particular court location where a case is properly heard, usually based on where the parties live or where the events happened. Venue is about place; jurisdiction is about authority.
Verdict
The formal decision reached by a jury (or a judge in a bench trial) on the questions put to it, such as whether a defendant is liable or guilty.
Voir Dire
The process of questioning potential jurors (or sometimes a witness) to decide who is qualified and unbiased enough to serve or testify.

Filings & Documents

Affidavit
A written statement of facts that the person signs under oath before an authorized officer, such as a notary, swearing the statement is true.
Answer
The defendant's formal written response to a complaint, admitting or denying each allegation and raising any defenses.
Brief
A written document that a party files to explain its legal arguments to the court, citing the facts and the law that support its position.
Complaint
The document that starts a civil lawsuit, in which the plaintiff lays out the facts, the legal claims, and what relief they are asking the court to grant.
Writ
A formal written order from a court directing a person or official to do or stop doing something, such as a writ of habeas corpus or a writ of certiorari.

Evidence & Discovery

Beyond a Reasonable Doubt
The high standard of proof required to convict someone of a crime: the evidence must leave no reasonable doubt about the defendant's guilt.
Burden of Proof
The obligation to prove a disputed claim. Which side carries it, and how convincingly they must prove their case, depends on the type of proceeding.
Deposition
Out-of-court testimony that a witness gives under oath before trial, recorded by a court reporter, and usable later to prepare the case or challenge testimony.
Discovery
The pretrial phase in which each side exchanges information and evidence about the case, through tools like document requests, written questions, and depositions.
Preponderance of the Evidence
The usual standard of proof in civil cases: a party wins a point if it is more likely true than not — often described as tipping the scale past fifty percent.
Prima Facie
Latin for 'at first look.' A prima facie case is one supported by enough evidence to proceed unless the other side rebuts it.
Subpoena
A court-backed order requiring someone to testify or to produce documents or other evidence. Ignoring a valid subpoena can lead to penalties.

Case Law & Precedent

Dictum
Short for 'obiter dictum.' A remark or observation in a court's opinion that is not essential to the decision, and so does not carry the binding force of the holding.
Holding
The core legal rule a court's decision establishes — the answer to the legal question presented — as opposed to the surrounding discussion.
Precedent
A prior court decision that guides how later, similar cases should be decided. Courts look to precedent to keep the law consistent and predictable.
Stare Decisis
Latin for 'to stand by things decided.' The principle that courts should generally follow the precedents set by earlier decisions.

Appeals & Review

Affirm
When a higher court agrees with and upholds the decision of the lower court.
Certiorari
A higher court's order agreeing to review a lower court's decision. When the US Supreme Court 'grants cert,' it agrees to hear a case; it turns down most petitions.
De Novo
Latin for 'anew.' A de novo review means the higher court looks at an issue fresh, without deferring to the lower court's conclusion.
Remand
When a higher court sends a case back to a lower court for further action, often with instructions on what to reconsider or do next.
Reverse
When a higher court disagrees with the lower court and overturns its decision, in whole or in part.

Remedies & Orders

Damages
Money a court orders one party to pay another to make up for a loss or injury. It is one of the most common remedies in civil cases.
Habeas Corpus
Latin for 'that you have the body.' A legal action that lets a person challenge being held in custody by asking a court to decide whether the detention is lawful.
Injunction
A court order requiring a party to do something, or to stop doing something. It can be temporary while a case is pending or permanent as a final remedy.

Legal Concepts

Barred
In law, to be 'barred' means to be legally prevented from doing something — for example, a claim barred by the statute of limitations can no longer be pursued.
Equitable Estoppel
A form of estoppel that prevents a party from going back on their words or conduct when another party reasonably relied on them and would be harmed by the change.
Estoppel
A legal principle that stops a person from asserting something that contradicts what they previously said or did, especially where another party reasonably relied on it.
Negligence
Failing to use the care that a reasonably careful person would use, in a way that causes harm to someone else. It is the basis for many personal-injury claims.
Revocation
The act of officially canceling or withdrawing something that was previously granted or made — such as revoking an offer, a will, a license, or consent.
Statute of Limitations
A deadline set by law for starting a particular kind of lawsuit or charge. Once the period passes, the claim generally can no longer be brought.
Subrogation
When one party who has paid a loss — often an insurer — steps into the shoes of the party it paid to pursue whoever was actually responsible for that loss.
Tort
A civil wrong — other than a breach of contract — that causes harm and can give the injured person the right to sue, such as negligence or defamation.

Criminal Procedure

Arraignment
An early court hearing in a criminal case where the defendant is formally told the charges and enters a plea such as guilty or not guilty.
Bail
Money or conditions set by a court to allow an arrested person to stay out of custody while their case is pending, meant to ensure they return to court.
Indictment
A formal charge of a serious crime, issued by a grand jury after it decides there is enough evidence for the case to go forward.
Plea
A defendant's formal response to criminal charges — most commonly guilty or not guilty. Some courts also allow a 'no contest' plea.

Latin & Legalese

Et Al.
Abbreviation of the Latin 'et alii' ('and others'). Used in a case name or list to show there are additional parties beyond the one named.
Et Seq.
Abbreviation of the Latin 'et sequentes' ('and the following'). It signals that a citation covers a starting section and the sections that follow it.
Et Ux.
Abbreviation of the Latin 'et uxor' ('and wife'). An older convention in case names and deeds meaning a named person and their spouse.
Inter Alia
Latin for 'among other things.' Lawyers use it to signal that the items mentioned are examples, not a complete list.

These are general, plain-English definitions for reference, not legal advice, and the precise meaning of a term can vary by jurisdiction and context. For help with a specific matter, consult a licensed attorney. Back to the Legal Journal homepage.