wool

noun

ˈwu̇l 

often attributive

1

: the soft wavy or curly usually thick undercoat of various hairy mammals and especially the sheep made up of a matrix of keratin fibers and covered with minute scales

2

: a product of wool

especially : a woven fabric or garment of such fabric

3

a

: a dense felted pubescence especially on a plant : tomentum

b

: a filamentous mass

—usually used in combination compare mineral wool, steel wool

Synonyms of wool

• hair
• coat
• fleece
• fur

Examples of wool in a Sentence

She doesn't like wool because it can be itchy.

the wool from cashmere goats is considered by many to be the finest available

Recent Examples on the Web

Her ears were a cotton-candy pink and were swollen under the thin wool. — Emily Ruskovich, The Atlantic, 7 July 2026

The collection intersects performance and sartorial by developing technical fabrics in pure wool or stretch wool-nylon blends that have a freedom of movement. — Fairchild Studio, Footwear News, 7 July 2026

Soundcore Liberty 5 Noise Cancelling Earbuds The Soundcore Liberty 5 drops cinematic sound directly onto your travel kit by embedding official multi-directional Dolby Audio processing inside dual wool paper diaphragm drivers. — Juhi Wadia, PC Magazine, 6 July 2026

Luciana, 49, wore a Gabriela Hearst Tibor Rope Strapless Column Maxi Dress in black suede and merino wool from the designer’s Spring 2026 ready-to-wear collection. — Lily Brown, PEOPLE, 6 July 2026

Word History

Etymology

Middle English wolle, from Old English wull; akin to Old High German wolla wool, Latin vellus fleece, lana wool

First Known Use

before the 12th century, in the meaning defined at sense 1

Phrases Containing wool

• combing wool
• cotton wool
• cotton wool ball
• dyed-in-the-wool
• glass wool
• lamb's wool
• mineral wool
• pull the wool over one's eyes
• pull the wool over someone's eyes
• Shetland wool
• steel wool
• virgin wool
• wire wool
• wool fat
• wool grease

Rhymes for wool

• full
• pull
• brimful
• handful
• mirthful
• mouthful
• roomful
• spoonful

Kids Definition

wool

noun

ˈwu̇l 

1

: the soft wavy or curly usually thick undercoat of various mammals and especially the sheep

2

: a fabric or garment made of wool

3

: material that resembles a mass of wool

wooled

ˈwu̇ld

adjective