Fiberglass or fibreglass?
fiberglass is a noun meaning “Alternative form of fibreglass”; fibreglass is a noun meaning “Silica based glass extruded into fibers that possess a length at least 1000…”. In written English (wordfreq, 2021 data) fiberglass is about 3.2 times as common as fibreglass.
What is the difference between fiberglass and fibreglass?
| fiberglass | fibreglass | |
|---|---|---|
| Part of speech | noun, verb | noun, verb |
| Meaning | USAlternative form of fibreglass | UKSilica based glass extruded into fibers that possess a length at least 1000 times greater than their width UKA composite material made from fine fibres of spun glass held together with resin UKTo apply fibreglass to |
| Example | none recorded | to fibreglass the hull of a fishing boat |
| Forms | fiberglasses | fibreglasses |
| Pronunciation | not recorded | /ˈfaɪbəɡlɑːs/ |
| In writing | 1.1 times per million words | about once in every 3 million words |
Sources: fiberglass and fibreglass in the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Every current meaning of fiberglass and fibreglass
fiberglass
- 1
USAlternative form of fibreglass
- 2
USAlternative form of fibreglass
fibreglass
- 1
UKSilica based glass extruded into fibers that possess a length at least 1000 times greater than their width
- 2
UKTo apply fibreglass to
to fibreglass the hull of a fishing boat
- 3
UKEllipsis of fibreglass wool
- 4
UKA composite material made from fine fibres of spun glass held together with resin
Source: the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); obsolete, archaic, dialect and rare senses left out.
Which is more common, fiberglass or fibreglass?
fiberglass appears 1.1 times per million words; fibreglass about once in every 3 million words.
fiberglass 1.1 times per million wordsfibreglass about once in every 3 million words
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).