Certain intervals in music

• Liquor bottles
• Intervals in boundary, closed with no U-turns
• Trivial Pursuit wedges, e.g.
• Certain musical intervals
• Large pie pieces
• Pie wedges in Trivial Pursuit, e.g.
• Some pizza slices
• Generous portions of pie
• Trivial Pursuit wedges, vis-à-vis the whole pie

Wiktionary Word definitions in Wiktionary
n. (plural of sixth English)