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How to spell fifteenth

hear itfif·teenth/'fɪf'tinθ/nounSilent and tricky

What it means: The day next after the fourteenth of a month.

In a sentence: The school's art show is on the fifteenth of April.

The part people get wrong

Watch for double e. Often misspelled as fifthteenth or fiveteenth.

Same family: fifth, fifteen, fiftieth, fifty, fifteenthly. If you can spell one, the shared part carries to the others.

Where it comes from: Fifteenth comes from the Old English words "fīftiēne" (fifteen) and the ending "-tha" used to form ordinal numbers. Over time, the spelling and pronunciation changed, but the -th ending still marks it as an order number, like fourth, tenth, and twentieth.

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