What is Tongue ?
Tongue is (noun) 1. the long muscular organ in your mouth, which can move and is used for tasting, swallowing and speaking The soup was so hot it burnt my tongue. to say something with your tongue in your cheek, to say something tongue in cheek to say something which you do not mean seriously 2. a similar part in an animal, used for food We had tongue and salad. 3. a way of speaking She can have a sharp tongue when she wants to. 4. a language 5. a long loose piece of leather under the laces in a shoe
source: Easier English, Student Dictionary Upper Intermediate Level