doubt

/dʌʊt/

noun

Disbelief or uncertainty (about something); a particular instance of such disbelief or uncertainty.
"I have doubts about how to convert this code to JavaScript."
A point of uncertainty; a query.

verb

To be undecided about; to lack confidence in; to disbelieve, to question.
"He doubted that was really what you meant."
Similar: distrust, mistrust
To harbour suspicion about; suspect.
To anticipate with dread or fear; to apprehend.

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