obbligato /o(b)-bli-gäˈtō/ or obligato /o-bli-/ (music)

A musical accompaniment of independent importance, esp that of a single instrument to a vocal piece

That cannot be done without, that must be used in performance

• watch clock
• watch clocks
• Watch Committee
• watch crystal
• watch crystals
• watchdog
• watchdogs
• watched
• watcher
• watchers
• watches
• watchet
• watchets
• watch fire
• watch fires
• watchful
• watchfully
• watchfulness
• watchfulnesses
• watchglass
• watchglasses
• watchguard
• watchguards
• watch house
• watch houses