Out of date. / (US, military) Not making the progress required.

(idiomatic) Late, arriving late.

present participle of leave behind

simple past tense and past participle of leave behind

Third-person singular simple present indicative form of leave behind

plural of rushed behind

present participle of get behind

Third-person singular simple present indicative form of get behind

(transitive, idiomatic) To support; express one's support for, especially despite opposition; to stick with a decision. / Used other than figuratively or idiomatically: see stand, behind.

plural of stay-behind