boomer

Something that makes a booming sound.
(US) A transient worker who would move from boom town to boom town in search of temporary work.
A device used to bind or tighten chain.
(US, slang) A nuclear ballistic missile submarine, SSBN.
(UK) A Eurasian bittern (subfamily Botaurinae).
An adult male kangaroo.
(Appalachia) A red squirrel (Tamiasciurus hudsonicus).
A mountain beaver (Aplodontia rufa).
A player who prioritises economic development and securing resources (and therefore future production) over offence or defence.
(US, alt-of, historical) Alternative letter-case form of Boomer (“Oklahoma settler”).