in close confrontation

Characterized by head-to-head competition or conflict.

In a single, continuous period of time. / Simultaneously at each occurrence (of some action).

Alternative spelling of U.S. of A.

(dated, informal) The United States of America.

(informal) To complain; to demand attention or remedy for a problem.

(US) Americanized form of in for a penny, in for a pound.

(idiomatic) To create a predicament or problem for oneself; to do something that leaves one with no good alternatives or solutions.

(Ireland) Those who fail to speak up fail to get what they want.

Likely to happen only once in one's lifetime.