Definition of fortnight
- They stayed with us for a fortnight.
They stayed with us for a fortnight.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fortnight.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use: before 12th centurySee Words from the same year
: a period of 14 days : two weeks
What made you want to look up fortnight? Please tell us where you read or heard it (including the quote, if possible).
investment of mental or emotional energy
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