gaspereau/ˈɡæspərəʊ/gaspereau means an alewife (type of fish). Lexicurio rates it Sui generis — a strength score of 88 out of 100.gaspereau is pronounced /ˈɡæspərəʊ/.EtymologyFrom French gaspereau, a variant of gaspareau.nounAn alewife (type of fish).