Meaning & use
Sennight
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An archaic term for a period of seven days and nights; a week.
See it in a sentence
The letter promised the goods would arrive within a sennight.
In the old ballad, the knight vowed to return before the sennight was out.
A note on using this word
"Sennight" is a contraction of "seven night," paralleling "fortnight," which similarly contracts "fourteen night" and remains common in British English.
Words with a similar meaning
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