MOUTH[C]›the hard, pink part inside your mouth that your teeth grow out of: [usually plural]Protect your teeth and gums by visiting your dentist regularly.gum disease
SWEET[U](alsochewing gum)›a sweet substance that you chew (= bite repeatedly) but do not swallow: a stick of gum
STICKY[U]›a sticky substance like glue, used for sticking papers together → See alsobubble gum