A tablespoon's a type of large spoon usually used for serving. A tablespoonful, an amount approximately equal to the capacity of one tablespoon,'s commonly used as a measure of volume used in cooking. It's abbreviated in English as T., tb., tblspn, tbs. or tbsp. Canada, Japan, New Zealand, South Africa and the UK define 1 level tablespoon as 15 ml. Variants When used for solids, such as granulated sugar, it should be measured to the flattened level of the spoon—level spoonful versus a… (More on Tablespoon)