To attack in response to an attack by opponents.

(idiomatic, colloquial) Used to show encouragement or approval to a boy, man, or male animal.

A cry of "attaboy"; an accolade.

An attack to the groin area of the body.

The act of attaining; the act of arriving at or reaching; the act of obtaining by exertion or effort. / That which is attained, or obtained by exertion.

(computer security) An attempt to subvert security by recording legitimate communications and repeating them to try to impersonate a valid user.

(netball) A player allowed in the centre third and goal third, but not the shooting circle.

(netball) A player allowed in the centre third, goal third including the shooting circle.

(law, dated) An ancient privilege granted to forest officers to take for their own any thorns, brushwood, and windfalls within their own precincts.

(law, rare) The state a prisoner enters once a death sentence (usually for treason) had been issued; the state of being stripped of all civil rights.