(transitive) To make a physical or mental effort to progress some specified task; to endeavor or struggle on an issue or project.

(intransitive) To attack imaginary enemies. / (intransitive, by extension) To go on a wild-goose chase; to persistently engage in a futile activity.

(modal) After only a superficial examination or review

(idiomatic) Of a horse, to break suddenly into a gallop. / (idiomatic) Suddenly to say or do something impetuous.

currently, now, at present

currently, now, at the moment, at this moment in time, at the present time

(UK) At the limit of one’s patience; frustrated or annoyed.

(idiomatic, with infinitive) Making careful effort (to).

plural of at-bat

(idiomatic) On occasion, sometimes.