Collins COBUILD Advanced Learner's English Dictionary - filling

(fillings) 1. A filling is a small amount of metal or plastic that a dentist puts in a hole in a tooth to prevent further decay. The longer your child can go without needing a filling, the better. N-COUNT 2. The filling in something such as a cake, pie, or sandwich is a substance or mixture that is put inside it. Spread some of the filling over each pancake. N-MASS 3. The filling in a piece of soft furniture or in a cushion is the soft substance inside it. ...second-hand sofas with old-style foam fillings. N-MASS 4. Food that is filling makes you feel full when you have eaten it. Although it is tasty, crab is very filling. ADJ