2. Includes; joins: Cindy adds special greetings whenever she meets her friends.
Working out by chopping wood with an adz (adze) really adds to Jim's abs. In fact, he is looking so great, he has been asked to pose for ads in the local fitness-studio publication.
2. To go on to say or to write more: Helen said goodbye and wanted to add that she had a pleasant visit with Darren and Yvonne.
3. To join one thing to another so as to increase the number, quantity, or the importance of something: Lynn decided to add a new wing to her house.
Francisco and Thelma placed an ad in the paper because they wanted to add a pool to their yard; however, after they decided to add all of the expenses, they found it much more feasible to invest in a wading pool instead.