knob

noun

ˈnäb 

1

a

: a small rounded ornament or handle

b

: a rounded protuberance : lump

2

: a rounded usually isolated hill or mountain

knobbed

ˈnäbd 

adjective

knobby

ˈnä-bē 

adjective

Synonyms of knob

• chunk
• hunk
• clump
• wad
• glob
• lump

Examples of knob in a Sentence

a carved walking stick with a silver knob

toss a knob of butter into the frying pan

Recent Examples on the Web

Its front door was six inches too short for its frame and outfitted with a bathroom push knob instead of a lever handle, almost as if the original slab had been blown from its casing by an internal explosion. — Literary Hub, 11 Aug. 2026

Some may be automatic, while others require the user to slip a cap over the end or rotate a knob. — Bestreviews, Mercury News, 11 Aug. 2026

Hiking opportunities abound at nearby Pilot Mountain State Park, marked by its striking quartzite knob that once served as a geographic landmark for the Saura people. — Kristy Tolley, Travel + Leisure, 6 Aug. 2026

Replace Cabinet Hardware New drawer pulls, cabinet knobs, and even hinges can make quite the impact on your tired old kitchen cabinets. — Barbara Bellesi Zito, The Spruce, 5 Aug. 2026

Word History

Etymology

Middle English knobbe; akin to Middle Low German knubbe knob

First Known Use

15th century, in the meaning defined at sense 1b

Phrases Containing knob

• stop knob

Rhymes for knob

• blob
• bob
• cob
• daub
• fob
• glob
• gob
• hob
• job
• lob
• mob
• rob

Kids Definition

knob

noun

ˈnäb 

1

a

: a rounded lump

b

: a small rounded handle

2

: a rounded hill

knobbed

ˈnäbd 

adjective

knobby

ˈnäb-ē 

adjective

Medical Definition

knob

noun

ˈnäb 

: a rounded protuberance or lump

knobby

ˈnäb-ē 

adjective