introduce

1. (transitive, of people) To cause (someone) to be acquainted (with someone else).Examples: "Let me introduce you to my friends."; "His unruly hair was slicked down with water, and as Jessamy introduced him to Miss Brindle his face assumed a cherubic innocence which would immediately have aroused the suspicions of anyone who knew him."transitive

2. (transitive) To make (something or someone) known by formal announcement or recommendation.Examples: "The senator plans to introduce the bill in the next session."; "Let me introduce our guest speaker."Synonyms: give, announcetransitive

3. (transitive) To add (something) to a system, a mixture, or a container.Examples: "Various pollutants were introduced into the atmosphere."transitive

4. (transitive) To bring (something) into practice.Examples: "Wheeled transport was introduced long ago."; "First introduced in Letchworth Garden City in 1909, the roundabout[…]proved so popular in Britain that in the 1960s the Transport Research Laboratory developed a miniature version."transitive