definitely

American  

[def-uh-nit-lee] / ˈdɛf ə nɪt li /

adverb

1. in a clear and definite manner; unambiguously.

2. unequivocally; positively.

   Synonyms:

   certainly, absolutely

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interjection

1. (used to express complete agreement or strong affirmation).

   Are you starting your diet tomorrow? Definitely!

definitely British  

/ ˈdɛfɪnɪtlɪ /

adverb

1. in a definite manner

2. (sentence modifier) certainly

   he said he was coming, definitely

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1. unquestionably: used to confirm an assumption by a questioner

Usage

What does definitely mean? Definitely is an adverb that usually means certainly or without a doubt. It also has this meaning when it’s used as a single-word response.Definitely is also sometimes used as an adverb to describe an action as clearly defined or precise. When definitely is used as a single word in response to a question or other statement, it is called an interjection or sentence substitute. When used this way, it is very similar to saying certainly or absolutely.Example: I will definitely be there tomorrow—I promise.

Related Words

See clearly.

Etymology

Origin of definitely

First recorded in 1575–85; definite + -ly

Compare meaning

How does definitely compare to similar and commonly confused words? Explore the most common comparisons:

• definitely vs. defiantly

Related Words

• absolutely
• clearly
• decidedly
• doubtless
• easily
• finally
• obviously
• plainly
• surely
• undeniably
• unequivocally
• unquestionably