(transitive) To formally announce one's arrival at a location or event (usually a hotel) to a proprietor or employee of that location or event in order to secure admission, accommodations, or other services.

(transitive) To personally verify that (someone or something) is safe, copacetic, appropriate or satisfactory.

A surname.

An aircraft maintenance check performed approximately every 500-800 flight hours or 200-400 cycles.

Under restraint or control.

plural of checking

present participle of check in

present participle of check

(ice hockey) The act of physically keeping an opposing player in check. / (informal) A checking account.

Third-person singular simple present indicative form of check