An alleyway that runs behind a row of houses, or between rows of houses / (slang, euphemistic) The anus.

Used other than figuratively or idiomatically: see blind, alley. A street or passageway that leads nowhere. / (figuratively) A course of inquiry that leads nowhere.

(electronics) A spring-loaded metal clip, usually attached to a wire and used to make temporary electrical connections.

A mixture of metals having a melting point lower than that of any of its components. Examples are lead-tin solder, cast-iron (a eutectic mixture of iron and carbon), copper-silver eutectic (silver solder).

(pathology, immunology) A group of symptoms similar to those of a cold such as runny nose and sore throat, caused by an allergic reaction to an allergen such as dust, plant pollens or animal dander.

(computing) A table used internally by the operating system to keep track of the structure of a disk and where files are stored on it.

plural of file allocation table

(automotive) a wheel rim made from an aluminium alloy / (slang) mag wheel

The response of the immune system to an allergen

To take into account when making plans. / (usually intransitive) To make possible.