certainly
Translation
definitely, without doubt, of course
Examples
He will certainly be there.
He will certainly be there.
Can I help you? – Certainly.
Can I help you? – Certainly.
Grammar Patterns
((sentence-initial)) used to agree with a request Certainly, I can help you.
((mid-sentence)) without doubt He will certainly come.
Similar Words
Synonyms: definitely, surely, undoubtedly
Etymology
From the adjective 'certain' + the adverb-forming suffix '-ly'.
Memory Tips
It adds certainty to a statement. If you are 'certain', you say 'certainly'.