Synonyms for vent

These verbs mean to give outlet to thoughts or emotions. To vent is to unburden oneself of a strong pent-up emotion: “She was jealous … and glad of any excuse to vent her pique” (Edward G.E.L. Bulwer-Lytton).
Express, a more comprehensive term, refers to both verbal and nonverbal communication: found the precise words to express her idea; expressed his affection with a hug; “expressing emotion in the form of art” (T.S. Eliot).
Utter involves vocal expression: “The words were uttered in the hearing of Montezuma” (William Hickling Prescott).
Voice denotes the expression of outlook or viewpoint: The lawyer voiced her satisfaction with the verdict.
To air is to show off one's feelings, beliefs, or ideas: They aired their differences during dinner.