Tablespoon n. : A spoon of the largest size commonly used at the table; -- distinguished from teaspoon, dessert spoon, etc.

Example:
Does consuming a Tablespoon of apple cider vinegar really help weight loss?

Taxonomy
level tablespoon, ml, tablespoonful, spoonful, free encyclopedia, capacity, spoon, tb, Relationship, teaspoon, solids, unit of volume, Australian, International System of units, Measuring Spoons, Variants, search, approximately equal.

Defination from the web:
tablespoon, is commonly used as a measure of volume used in cooking. ... measured to the flattened level of the spoon—level spoonful versus a heaping spoonful or heaped tablespoon, ... 1 U.S. tablespoon = 1/16 cup ...