1. Fruit of the oak tree: a smooth thin-walled nut in a woody cup-shaped base

Derived forms: acorns

Type of: fruit

Part of: oak, oak tree

Encyclopedia: Acorn Acorn, Ltd Acorn, Oakland, California

• knob celery
• knobbed
• knobble
• knobbly
• knobby
• knobcone pine
• knobkerrie
• knobkerry
• knock
• knock against
• knock back
• knock cold
• knock on
• knock over
• knock rummy
• knock-down-and-drag-out
• knock-knee
• knock-kneed
• knock-on effect
• knock-up
• knockabout
• knockdown
• knockdown-dragout
• knocked out
• knocker