Spelling.School · How to spell

How to spell thin

Thin is spelled T-H-I-N.

hear itthin/θɪn/adjectiveSounds

What it means: Measuring a small distance between opposite sides.

In a sentence: The pencil is thin.

Same family: thinner, thinnest, thinly, thinness, slim. If you can spell one, the shared part carries to the others.

Where it comes from: Thin comes from Old English "þynne," meaning "narrow" or "not thick." It is related to German "dünn" and Dutch "dun," showing how many basic describing words in English have very old Germanic roots.

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