YourDictionary defines a vote of no confidence as a motion put before parliament to defeat or embarrass an opposing party. Typically, the term appears in reference to politics, especially British and American politics.

A vote of no confidence is also called a motion of no confidence, a censure motion, a no confidence motion, or a confidence motion. According to Westminster parliamentary procedure, governments often respond to a vote of no confidence by calling for a confidence motion. Parliament passes or rejects the vote. Typically, when a vote of no confidence passes parliament, the government official must either resign or seek a parliamentary dissolution or general election.
While the vote of no confidence is rarer these days, in recent times, several political leaders have come under fire and a vote of no confidence has been called for by the opposing party. Many parliamentary and presidential political systems include the vote of no confidence in the political playbook.
Many people mistakenly associate a vote of no confidence with the term impeachment. The two words mean different things. Impeachment implies that a crime has been committed by a government official. Impeachment is a rare political process. Other political leaders in America, from the Attorney General to the local sheriff, may receive a vote of no confidence. A vote of no confidence doesn’t imply that the person under vote has committed a crime, however.