(idiomatic, mostly used conditionally) in someone's situation.

Fully available to help or to be of use to someone, or some organisation. / (formal) By way of introduction on first meeting another person.

(idiomatic) Being someone's liability or responsibility; with which someone is lumbered. / (idiomatic) Available to be used by someone; in someone's possession.

Shining very brightly and directly at the face so that it is difficult to see because one is blinded by the light. / (figuratively) According to someone's subjective point of view.

Some other person.

(idiomatic) To give somebody credit or praise.

Used other than figuratively or idiomatically: see good, for.

An exclamation of encouragement or congratulation. / A sarcastic statement that the fact at hand is uninteresting, unimpressive, or irrelevant

For someone's sake. / According to someone's interpretation or account.

(colloquial) To beat up or punish someone. / (colloquial) To put up a good fight against someone. / (colloquial) To have sexual relations with someone.