Dictionary

(often in the plural) The flesh around the teeth.

To chew, especially of a toothless person or animal.

To deepen and enlarge the spaces between the teeth of (a worn saw), as with a gummer.

Any of various viscous or sticky substances that are exuded by certain plants.

Any viscous or sticky substance resembling those that are exuded by certain plants.

Chewing gum.

A single piece of chewing gum.

Example: Do you have a gum to spare?

(sometimes with up) To apply an adhesive or gum to; to make sticky by applying a sticky substance to.

To stiffen with glue or gum.

(sometimes with together) To inelegantly attach into a sequence.

(with up) To impair the functioning of a thing or process.

Example: That cheap oil will gum up the engine valves.