A species of onion (Allium fistulosum).

A species of onion (Allium fistulosum) from Asia, with slender bulbs. / Any of several similar types of onion.

(idiomatic) Completely determined; obstinate.

(idiomatic) To decide; to reach a conclusion.

(baseball, dated, slang, 1800s) To throw a curve ball.

(US) scallion

In hope of success, using one's best guess / (colloquial, business, of creating a work) With the hope of selling it, as opposed to on commission (for hire).

A short joke, especially one of a single sentence. / A short remark intended as a sound bite. / (computing) A command or small program consisting of a single line of input.

(idiomatic) That said to be possessed by someone who is obsessed with something or only able to think of one thing.

On a level with the eye of the observer, as of a picture hung in on a wall. / (idiomatic) At risk, as in a contest or enterprise. / Currently calling on the telephone.