- an artillery base supporting advancing troops
WordReference Random House Unabridged Dictionary of American English © 2026
fire•base
(fīər′bās′),USA pronunciation n. [Mil.]
- Militaryan artillery base, esp. one set up quickly to support advancing troops or to forestall enemy advances.
- fire + base1 1965–70
Collins Concise English Dictionary © HarperCollins Publishers::
firebase /ˈfaɪəˌbeɪs/ n