simple past tense and past participle of roll back

Third-person singular simple present indicative form of roll back

(transitive) Return to (an activity) / (transitive) To return contact with (someone); to return to someone in response to a request

To recline while still in a seated position, with one's back on the frame of the seat. / (idiomatic) To relax, to not exert oneself.

(motor racing, of a team) Wholly or substantially supported by financial or technical backing from a car manufacturer, but not necessarily contracted to it.

plural of back end

plural of back-end

(computing) Relating to the back end part of a hardware or software system.

Third-person singular simple present indicative form of back up

present participle of back up