The difference between Certainly and Definitely

When used as adverbs, certainly means in a way which is certain, whereas definitely means without question and beyond doubt.

check bellow for the other definitions of Certainly and Definitely

  1. Certainly as an adverb:

    In a way which is certain; with certainty.

  2. Certainly as an adverb:

    Without doubt, surely.

    Examples:

    "The accident was certainly caused by human error."

    "That was certainly sweet of him."

    "You may certainly join us for dinner."

  3. Certainly as an adverb:

    An emphatic affirmative answer; of course.

    Examples:

    "Would you like it with ice?  Certainly, and with lemon please."

  1. Definitely as an adverb:

    Without question and beyond doubt.

    Examples:

    "Joe definitely doesn't know how to drive a tractor."

  2. Definitely as an adverb:

    In a definite manner; decisively.

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