(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.

(politics) A system for multiple branches of government wherein each has some control over the actions of each of the others.

Third-person singular simple present indicative form of check and balance

plural of blank check

plural of bad check

plural of background check