Ant
Introduces the build tool for Java application development, covering both user defined and built-in tasks.

more details ...

1. \An 't\
   An it, that is, and it or if it. See {An}, conj. [Obs.]
   

2. \An't\
   A contraction for are and am not; also used for is not; --
   now usually written ain't. [Colloq. & illiterate speech.]