Legal Terms Starting with K

The letter K appears in fewer English words than most other letters, and that scarcity carries over to legal vocabulary. Even so, several K-words show up regularly in criminal law (kidnapping, knowingly), evidence (knowledge), business law (key person insurance), and constitutional procedure. Below are the most commonly encountered.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Kickback

Illegal payment or compensation received in return for facilitating a transaction, contract, or favorable treatment.

Criminal Law

Kidnapping

The unlawful seizure and detention of a person against their will through force, fraud, or threat.

Criminal Law

Kin

Blood relatives or family members related by birth, marriage, or adoption, important in inheritance and custody matters.

Family Law

Knowingly

A mental state in criminal law where a person is aware their conduct will cause a particular result.

Criminal Law

Knowledge

Awareness or understanding of facts or circumstances, often relevant in determining liability or culpability.

General Legal Terms

Kangaroo Court

A sham legal proceeding that ignores recognized standards of law or justice, conducted to reach a predetermined outcome.

Court Procedure

Key Person Insurance

Life insurance policy taken by a business on essential employees to protect against financial loss from their death or disability.

Business Law

Kiting

A fraudulent scheme involving writing checks from accounts with insufficient funds, exploiting bank float time.

Criminal Law

Knock-and-Announce Rule

The general Fourth Amendment requirement that police announce their presence and purpose before entering a residence to execute a warrant, subject to recognised exceptions.

Criminal Procedure

Known Creditor

In bankruptcy, a creditor whose identity and claim are known or reasonably ascertainable from the debtor's records, and who is therefore entitled to direct notice of the case.

Bankruptcy Law

Key Money

An up-front payment a tenant makes to obtain a lease, separate from rent and security deposit. Treatment varies by state; some jurisdictions restrict or prohibit it in residential rentals.

Real Estate

Kelo Case

Shorthand for the Supreme Court's 2005 eminent-domain decision in Kelo v. City of New London, which held that economic development can qualify as a "public use" under the Fifth Amendment. Many states tightened their own takings laws in response.

Property Law

Kinship Care

An arrangement in which a relative — most often a grandparent — assumes care of a child whose parents are temporarily or permanently unable to do so. May be informal or formalised through a guardianship or kinship-foster placement.

Family Law

Kompetenz-Kompetenz

A doctrine in arbitration law holding that an arbitrator has the authority to rule on their own jurisdiction, including challenges to the existence or validity of the arbitration agreement.

Dispute Resolution