It will certainly rain tomorrow.
This year's festival was certainly much better than last year's.
I'm certainly going to try.
The new version is most certainly easier to use.
The snake that bit her was almost certainly poisonous.
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.