fibreoptics vs fiberoptics

fibreoptics and fiberoptics both are nouns.

Word	Noun	Adjective	Verb	Adverb
fibreoptics	Yes	No	No	No
fiberoptics	Yes	No	No	No

As nouns, fibreoptics and fiberoptics are synonyms defined as:

fibreoptics and fiberoptics: the transmission of light signals via glass fibers

Other synonyms of fibreoptics include fiber optics, fibre optics.

fibreoptics (noun)	fiberoptics (noun)
the transmission of light signals via glass fibers	the transmission of light signals via glass fibers