The act of using. / (uncountable) The act of consuming alcohol or narcotics. / (uncountable, followed by "of") Usefulness, benefit. / A function; a purpose for which something may be employed.

(transitive) To employ; to apply; to utilize. / (transitive, often with up) To expend; to consume by employing. / (transitive) To exploit.

simple past tense and past participle of use / (intransitive, auxiliary, defective, only in past tense/participle) To perform habitually; to be accustomed [to doing something].

That is or has or have been used. / That has or have previously been owned by someone else. / Familiar through use; usual; accustomed.

Alternative spelling of U.S. of A.

(informal) United States dollar

Contraction of us is.

plural of U

plural of usefulness

(colloquial, usually with a following present participle or infinitive expression) Used to indicate that the specified action cannot succeed or offers no advantage if successful