Spelling.School · How to spell

How to spell definitely

Definitely is spelled D-E-F-I-N-I-T-E-L-Y. It is definite + ly, and definite has finite in it: -ITE, then -LY.

hear itdef·i·nite·ly/'dɛfənɪtli/adverbRules and real life

What it means: Without question and beyond doubt.

In a sentence: I definitely will share my toys with you.

The part people get wrong

Watch for an unstressed vowel that is hard to hear.

Same family: define, definition, definitive, indefinite, definiteness. If you can spell one, the shared part carries to the others.

Where it comes from: “Definitely” comes from the Latin root *finis*, meaning “end” or “limit,” through the word *definite* (“clearly set within limits”). It became common in English in the 16th–17th centuries and is now one of the most frequently misspelled words in online writing.

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