A person who operates the bombing equipment on a military aircraft, or historically, a soldier who operated cannons.
From French 'bombardier,' derived from 'bombarde' (a cannon), which came from Latin 'bombus' (a deep sound). The -ier suffix indicates someone who does that job.
Bombardiers got their name from the 'boom' sound—literally, 'bombarde' comes from Latin 'bombus' meaning a deep, loud noise. The word itself is onomatopoeia for the weapon it describes!
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