Add

v. 1 join (one thing to another) as an increase or supplement. 2 put together (numbers) to find their total. 3 say further. add in include. add up 1 find the total of. 2 (foil. by to) amount to. 3 colloq. make sense. [Latin addo] addendum ia’dendam/ n. (pl. da) 1 thing to be added. 2 material added at the end of a book.