caviar or caviare /kavˈi-är or ka-vi-ärˈ/

1. Salted roe of the sturgeon fish
2. Something whose flavour is too fine for the common taste (figurative)

• bust a gut
• bustard
• bustards
• busted
• busted flush
• bustee
• bustees
• buster
• busters
• bustier
• bustiers
• bustiest
• busting
• bustings
• bustle
• bustled
• bustler
• bustlers
• bustles
• bustling
• bust one's butt
• busts
• bust up
• bust-up
• bust-ups