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English definition of “gum”

gum

verb [T]     /ɡʌm/ (-mm-) old-fashioned
If you gum one piece of paper to another, you stick them together using glue: The labels were already gummed to the envelopes.Glues and gluing and stickiness
(Definition of gum verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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