Comparative form of boomy; more booming, more characterized by loud, deep sounds.
From 'boomy' (adjective form of boom) + '-er' (comparative suffix). This follows standard English rules for making comparatives, similar to 'bigger,' 'louder,' and 'deeper.'
English has two main ways to make comparatives: '-er' (louder, boomier) for shorter adjectives and 'more' (more beautiful, more booming) for longer ones—linguists still debate where the boundary sits!
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