Bass or Basses can refer to many different things.

Musical

IPA: [beɪs], rhyming with "face"

• Instrument
  • An abbreviated name for the bass guitar
  • An abbreviated name for the double bass
  • A common name for the Basso vocal range.
• Terminology
  • Bass (musical term)
  • A bassline is a series of notes with tones that are low in pitch or frequency
  • Bass clef
  • Figured bass is a kind of musical notation used to indicate chords in relation to a bass note
  • Bass note
• Audio Systems
  • Bass Audio The BASS Audio Sound system (5.1 -> 8.1)
• Genre
  • Miami bass is a form of music known for deep, throbbing beats, hyperkinetic rhythms and, often, sexually explicit lyrics
  • Ghettotech is a form of bass heavy electronic music based out of Detroit

Fish

IPA: [bæs], rhyming with "glass"

• Bass (fish)
• Freshwater
  • Black bass
  • White bass
  • Striped bass
  • Spotted bass
  • Largemouth bass
  • Smallmouth bass
• Salt water
  • Sea bass
  • Black sea bass

Other

IPA: [bæs], rhyming with "glass"

• Bass the arch-rival of Mega Man.
• Bass (beer) and the company which brews the beer
• George Bass, explorer
  • Bass Strait
  • Division of Bass, electoral district
• Basses, a commune of the Vienne département in France