Fiber-Fibre | Commonly Confused Words

Fiber

/ˈfaɪbə/

A thin, thread-like structure that is flexible and often used to make fabrics or connect parts of organisms.

This word has no antonyms

/ˈfaɪbə/

A thread, filament, or thin strand in substances that can be woven; in nutrition, a part of plants aiding digestion

His moral fibre is blunted.A diet rich in fibre aids digestion.The rug's vibrant colours faded, yet its fibre remained strong.

Fiber and fibre are two different spellings of the same word.
Fiber is the preferred spelling in American English.
Fibre is the preferred spelling in British English.
Both spellings refer to a thread or filament, but usage depends on the regional spelling convention.
Spelling choice may affect how a word is recognized in different countries.