glass fibre vs glass fiber

glass fibre and glass fiber both are nouns.

Word	Noun	Adjective	Verb	Adverb
glass fibre	Yes	No	No	No
glass fiber	Yes	No	No	No

As nouns, glass fibre and glass fiber are synonyms defined as:

glass fibre and glass fiber: a very thin fiber made of glass that functions as a waveguide for light; used in bundles to transmit images

Other synonyms of glass fibre include optical fiber, optical fibre.

glass fibre (noun)	glass fiber (noun)
a very thin fiber made of glass that functions as a waveguide for light; used in bundles to transmit images	a very thin fiber made of glass that functions as a waveguide for light; used in bundles to transmit images