Battalion

1. v. t. To form into battalions.
2. n. A body of troops; esp. a body of troops or an army in battle array.
3. n. A regiment, or two or more companies of a regiment, esp. when assembled for drill or battle.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.