gum

US /ɡʌm/
UK /ɡʌm/
"gum" picture
1.

a sticky substance, especially one that is chewed for a long time for its flavor or to strengthen the teeth

:
He chewed a piece of bubble gum.
Please dispose of your chewing gum properly.
2.

the firm, fleshy tissue that covers the alveolar processes of the jaws and surrounds the necks of the teeth

:
Brush your teeth and gums twice a day.
Inflamed gums can be a sign of gingivitis.
1.

to stick or seal with gum or an adhesive

:
He gummed the envelope shut.
The old poster was gummed to the wall.