(transitive, intransitive) To produce a total by adding. / (transitive, intransitive) To summarize.

Of any system where all gains are offset by exactly equal losses.

A Cantonese-style meal traditionally eaten in the morning or early afternoon, comprising tea and food typically placed in small steamer baskets or on small plates, and often served from carts that move around from table to table in a restaurant.

A relatively large single payment of money often paid and received instead of, or in addition to, a sequence of smaller payments.

(game theory) of a situation in which there is a net loss

(arithmetic) An empty sum.

(arithmetic) The result of adding no numbers, conventionally defined to equal zero.

(mathematics) coproduct in some categories, like abelian groups, topological spaces or modules

(topology) A one-point union of a family of topological spaces.

(game theory) Pertaining to a game or situation where overall benefits to all participants can increase.