A gentleman's agreement is an unofficial pact formed between two parties, usually binding them to one another through honor and mutual trust. Synonyms for gentleman agreement include a handshake deal, an unwritten contract, a verbal agreement, or a pact of honor. These terms imply a consensus between two parties, as well as a sense of integrity that both parties are expected to uphold without the need for a written legal document. A gentleman's agreement involves mutual respect and a willingness to abide by one's word, regardless of any legal consequences. This form of agreement is often seen in business dealings or negotiations between individuals, where trust between parties is essential to the success of the transaction.