Take a look at this thesaurus entry. doubt (n.) definition: the feeling of uncertainty or disbelief synonyms: distrust, misgiving, suspicion antonyms: belief, confidence, trust based on the thesaurus entry, which word is also a synonym for the word “doubt”? question faith certainty value

The correct option is question.

Explanation:

A synonym is commonly defined as a word or phrase which means exactly the same or nearly the same as another word in the same language. Or in other words, Synonyms are words that have a related meaning which can be used in order to avoid repeating the same word over and over.

Bearing in mind the definition of synonym provided above, as well as the thesaurus entry provided,  it could be possible to state that from the options listed, the one that could be also a synonym for the word “doubt" is  question.

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