plural of back and forth

Alternative spelling of back and forth

Used to indicate the speaker will return in a moment. Often abbreviated in online slang as BRB.

past participle of fall back on

Used other than figuratively or idiomatically: see step, back. / (idiomatic) To stop what one is doing and evaluate the current situation.

(idiomatic) A reversion to a former state or situation.

Third-person singular simple present indicative form of step back

simple past tense and past participle of step back

present participle of step back

(rail transport) a system to decrease turnaround time at terminal stations where a second driver enters the rear cab of an arriving train and departs driving the train from that end while the first driver is walking the length of the platform ready to take over the subsequent departure.