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Definition of fortnight
fortnight
/ˈfɔːrtnaɪt/
fort · night
Adverb:fortnightly
•Plural:fortnights
•Adjective:fortnightly
fortnight Lexical Profile
CEFR
B2
Grade
7
Tier
2
Usage
Top 10k
Syllables
2
fortnight Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
British A period of two weeks (fourteen days).
Example
"We are planning to spend a fortnight touring the Scottish Highlands this summer."
Word Nuance & Usage
While "fortnight" is standard everyday vocabulary in British, Australian, and New Zealand English, it is rarely used in contemporary North American English, where "two weeks" is strongly preferred.
• Nearby Words
Word Origin & Etymology
From Middle English "fourtenight," a contraction of the Old English phrase "feowertyne niht," literally meaning "fourteen nights," reflecting the ancient Germanic custom of reckoning time by nights rather than days.
Cite this Entry
Wordmom. (2026). Definition of Fortnight. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/fortnight