1. A musical interval that spans three degrees of diatonic scale

Encyclopedia: Major third

• bay myrtle
• Bay of Bengal
• Bay of Biscay
• Bay of Campeche
• Bay of Fundy
• Bay of Naples
• Bay of Ob
• bay rum
• bay scallop
• Bay State
• Bay Stater
• bay tree
• bay willow
• bay window
• bay wreath
• bay-leaved caper
• bay-rum tree
• baya
• Bayard
• bayat
• bayberry
• bayberry tallow
• bayberry wax
• Baycol
• Bayer