(chiefly US and Canada) A workplace protest by employees designed to inconvenience or disrupt the business of the employer, especially one which is limited in duration or severity.

(law) In United States defamation law, the level of knowledge that must be demonstrated for a public figure to prevail as a plaintiff in a lawsuit for defamation; the defendant must have either known that information published about the plaintiff was false, or must have shown reckless disregard for the truth by not a making simple inquiry or investigation which would have disclosed it.

That responds to spoken commands.

Filmed video, as opposed to video produced by animation or by computer graphics; often used attributively.

Alternative spelling of bolt action

(US, law) A lawsuit brought on behalf of a corporation by a shareholder in that corporation, against a third party usually an insider of the corporation, such as an executive officer or director.

(Canadian politics) Alternative spelling of Action democratique

(Canadian politics) Alternative spelling of Action Democratique du Quebec — the Action démocratique du Québec

(physics) Synonym of quantum entanglement

plural of action potential