add + To put two things or numbers together, e.g. 2+2 ☊ addition + Fact of adding something; thing that is added ☊ additional + Further or added ☊ address + exact street location of a place ☊ add + To put two things or numbers together, e.g. 2+2 ☊ addition + Fact of adding something; thing that is added ☊ additional + Further or added ☊ address + exact street location of a place ☊