Definition of "gum"

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

To chew, especially of a toothless person or animal.  examples

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

(chiefly uncountable) Any of various viscous or sticky substances that are exuded by certain plants.  examples

(chiefly uncountable) Any viscous or sticky substance resembling those that are exuded by certain plants.  examples

(chiefly uncountable) Chewing gum.  examples

(countable) A single piece of chewing gum.  quotations  examples

(South Africa, often in the plural) A gummi candy.  examples

(US, dialect, Southern US) A hive made of a section of a hollow gum tree; hence, any roughly made hive.  examples

(US, dialect, Southern US) A vessel or bin made from a hollow log.  examples

(US, dialect) A rubber overshoe.  examples

A gum tree.  examples

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

To stiffen with glue or gum.  quotations  examples

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

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