At or near the rear. / (predicative) Returned or restored to a previous place or condition. / Not current. / Situated away from the main or most frequented areas. / In arrears; overdue.

(not comparable) To or in a previous condition or place. / In a direction opposite to that in which someone or something is facing or normally pointing.

Before now; ago.

The spine and associated tissues. / (slang, uncountable) Large and attractive buttocks. / (figuratively) The part of a piece of clothing which covers the back.

(intransitive) To go in the reverse direction. / (transitive) To support.

A large shallow vat; a cistern, tub, or trough, used by brewers, distillers, dyers, picklers, gluemakers, and others, for mixing or cooling wort, holding water, hot glue, etc. / A ferryboat.

A South American hummingbird, Sephanoides sephaniodes.

A sudden backward motion. / (figuratively) A negative reaction, objection or outcry, especially of a violent or abrupt nature.

To cause or set off a backlash.

(New Zealand, northern) A holiday home, usually small and near the beach, often with only one or two rooms and of simple construction.