The noun has 8 meanings:
Meaning #1:
the lowest part of the musical range
Meaning #2:
the lowest part in polyphonic music
Synonym: bass part
Meaning #3:
an adult male singer with the lowest voice
Synonym: basso
Meaning #4:
the lean flesh of a saltwater fish of the family Serranidae
Synonym: sea bass
Meaning #5:
any of various North American freshwater fish with lean flesh (especially of the genus Micropterus)
Synonym: freshwater bass
Meaning #6:
the lowest adult male singing voice
Synonyms: bass voice, basso
Meaning #7:
the member with the lowest range of a family of musical instruments
Meaning #8:
nontechnical name for any of numerous edible marine and freshwater spiny-finned fishes
The adjective bass has one meaning:
Meaning #1:
having or denoting a low vocal or instrumental range
Synonym: deep
