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Synonyms

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

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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:

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Tony Tripp, director of advancement at the school, told the Long Beach Post that the school hasn’t determined yet what was stolen but that the damage was “definitely a high amount.”

From Los Angeles Times

"You couldn't fit her into little boxes, there was definitely something theatrical about her," Collins said.

From BBC

“I put myself in that position. I definitely probably need to go to therapy for that.”

From The Wall Street Journal

Meloni responded in a post on Instagram saying she was "definitely not like an angel", accompanied by a laughing emoji.

From BBC

But “ultimately, I think every one of us, given the opportunity, would definitely take a crack at trying to fix Venezuela.”

From The Wall Street Journal