intransitive verb
Definition: To feel uncertain or unsure about something.
Example: I doubt that he will come to the party tonight.
noun
Definition: A feeling of uncertainty or lack of trust about something or someone.
Example: She expressed her doubt about the plan's success.
transitive verb
Definition: To feel uncertain or unsure about something; to question the truth or reliability of something.
Example: I doubt that he will come to the party tonight.