Angus

anus

apparatus

bogus

bonus

Brutus

cactus

campus

caucus

cherub

circus

citrus

crocus

Cyprus

Damascus

dandruff

discus

focus

fungus

genus

hiatus

locus

lotus

minus

mucus

Olympus

onus

prospectus

ruckus

rumpus

status

surplus

tinnitus

thymus

Venus

virus

walrus