(archaic, slang) A cuckold.

An actor or actress who plays the leading role or a major role in an action movie.

(biochemistry) Initialism of adrenocorticotropic hormone.

The state of existing; existence. / An instance or quality of being actual or factual; fact. / (television) Live reporting on current affairs. / (historical, film) A short early motion picture.

(transitive) To activate, or to put into motion; to animate. / (transitive) To incite to action; to motivate.

Any activity done by an astronaut outside of a spacecraft etc; a spacewalk or moonwalk.

(UK, humorous) used to highlight a sexual ambiguity in an innocent remark

(law, often derogatory) The act of replacing an impartial interpretation of existing law with the judge's personal feelings about what the law should be.

A group of people joined temporarily to accomplish some task or take part in some organised collective action. / (US military) A component of a naval task force.

(law, chiefly US, Canada) A lawsuit brought by a single plaintiff or small group of plaintiffs as a representative of a large group of others having a common interest, with everyone in the large group eligible to receive damages if the plaintiff is successful.