boo /boo/

1. An exclamation used in fun to startle someone (also bo or boh /bō/)
2. A sound expressing disapproval or contempt (also booh)

To show disapproval (of) by making such a sound

booˈ-boy noun (informal)

A person who jeers and heckles

boo-hoo /-hooˈ/ noun

The sound of noisy weeping

intransitive verb

To weep noisily

• derecognizing
• dered
• deregister
• deregistered
• deregistering
• deregisters
• deregistration
• deregistrations
• deregulate
• deregulated
• deregulates
• deregulating
• deregulation
• deregulations
• derelict
• dereliction
• derelictions
• derelicts
• dereligionise
• dereligionised
• dereligionises
• dereligionising
• dereligionize
• dereligionized
• dereligionizes