atri

Example:The violin and cello formed a duo that filled the concert hall with beautiful melodies.

Definition:A group of two people or things, often used in music or sports, contrasting with a trio or a larger group.

Example:The telecommunications industry can often be described as duopolistic, with only two major players competing for market share.

Definition:A market structure in which there are only two companies or sellers that dominate the market, contrasting with a monopolistic or competitive market structure.

Example:He pulled the lever three times, but the door did not budge until the fourth attempt.

Definition:Three times, which could serve as an antonym in the context of multiples, contrasting with a tripartite structure.