(idiomatic) To be aware or conscious; to look closely or carefully; to use caution. Often used in the imperative.

Used to warn someone of an imminent danger.

(informal) To criticize a person in a ranting way or manner.

(idiomatic) To assert or promote one's opinion; to make one's thoughts known.

(US, slang) To lecture, scold, reprimand, or rebuke, especially in an angry tone of voice.

(idiomatic) To fail to finish school, or a given subject, program or course, due to academic shortcomings; i.e., to have too many flunking or failing grades (marks).

(transitive) To extend or lengthen excessively. / (transitive) To haul or bring out forcefully or from an awkward location.

(idiomatic) Using the voice; not silently; aloud.

(idiomatic) Inconsistent with one's personality, disposition, or usual expected behaviour.

(idiomatic) To divide into portions or chunks; to ration.