Request for a second interview or audition, following a successful initial interview.

To request someone's return. / To telephone someone again at a more convenient time. / To return to a shop or residence one has previously visited.

A utensil in the form of a brush or a sponge on a long handle, used to scrub the back while bathing.

(transitive, simile) To be intimately knowledgeable about something.

Alternative spelling of backstabbing

Used other than figuratively or idiomatically: see see, back. / (colloquial euphemistic) To be rid of.

(idiomatic) No harm to one.

(chiefly Britain) Someone who has an anonymous support role in an organization, especially a technician or scientist; a boffin.

A room near the rear of a premises, especially one that is only accessible to a privileged few and can be used as an inconspicuous meeting place.

Of, relating to, or happening in a backroom. / (figuratively) Characterized by secrecy or anonymity.