Public Works and Government Services Canada
Symbol of the Government of Canada

Institutional Links

Search TERMIUM Plus®
To begin your search, go to the alphabetical index below and click on the first letter of the word you are searching for.

noun used as an adjective

Nouns used as adjectives remain invariable unless they are made possessive. Thus, in the example

  • Flight Numbers AB123 and CD456 are now ready for boarding.

the noun flight does not take an s because it is acting not as a noun but as an adjective modifying the noun Numbers.

However, nouns used as adjectives may be in the possessive form, in which case they are followed by ’s:

  • The flight’s passengers were fortunately not injured in the incident.