noun

doubt

doubt, uncertainty

I have some doubt about his story.

I have some doubt about his story.

There is no doubt that he is guilty.

There is no doubt that he is guilty.

((a doubt)) ((about sth.)) a feeling of uncertainty about (sth.) I have some doubt about his story.

((no doubt)) ((that ...)) it is certain that... There is no doubt that he is guilty.

Synonyms: uncertainty, suspicion; Antonyms: certainty, belief

From Latin 'dubitare' (to hesitate), related to 'duo' (two), suggesting wavering between two options.

Think of 'double'. When you have doubt, you are seeing two (or more) possibilities and are unsure which is true.

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