transaction āļāļ·āļāļāļ°āđāļĢ transaction āļāļ·āļāļāļ°āđāļĢ The act of transacting or the fact of being transacted.Something transacted, especially a business agreement or exchange.Communication involving two or more people that affects all those involved; personal interaction:"a rich sense of the transaction between writer and reader"(William Zinsser).A record of business conducted at a meeting; proceedings.