Learn how to say Doubter correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word doubt:
a feeling of uncertainty or lack of conviction:
some doubt has been cast upon the authenticity of this account
they had doubts that they would ever win
1 [with object] feel uncertain about:
I doubt my ability to do the job
I doubt if anyone slept that night
question the truth or fact of (something):
who can doubt the value and necessity of these services?
disbelieve or lack faith in (someone):
I have no reason to doubt him
[no object] feel uncertain, especially about one’s religious beliefs.
2 [with clause] archaic fear; be afraid:
I doubt not any ones contradicting this Journal