1 certainly | Definition of certainly

certainly

adverb
cer·​tain·​ly | \ ˈsər-tᵊn-lē How to pronounce certainly (audio) \

Definition of certainly

1 : in a manner that is certain : with certainty
2 : it is certain that : assuredly

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Examples of certainly in a Sentence

It will certainly rain tomorrow. This year's festival was certainly much better than last year's.
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Recent Examples on the Web

This certainly has the makings of an entertaining contest; both sides look to play quick, dynamic football and two of the world's most exciting talents in Jadon Sancho and Kai Havertz will be up against one another, albeit not necessarily 1v1. — SI.com, "Dortmund vs Leverkusen Preview: Where to Watch, Buy Tickets, Live Stream, Kick Off Time & Team News," 11 Sep. 2019 The highlight of the day was certainly finding two manatees right next to the reef. — National Geographic, "Ocean Activities," 10 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'certainly.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of certainly

14th century, in the meaning defined at sense 1

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More Definitions for certainly

certainly

adverb

English Language Learners Definition of certainly

: without doubt
: of course

certainly

adverb
cer·​tain·​ly | \ ˈsər-tᵊn-lē How to pronounce certainly (audio) \

Kids Definition of certainly

1 : without fail I will certainly help.
2 : without doubt You certainly don't look your age.

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