semibreve/ˈsɛmɪbɹiːv/EtymologyFrom Italian semibreve, ultimately from Latin semi- (“half”) and Latin brevis (“short”).semibreve means A musical note four beats long in 4/4 time; a whole note (US). Lexicurio rates it Sui generis — a strength score of 93 out of 100.nounA musical note four beats long in 4/4 time; a whole note (US)