From Longman Dictionary of Contemporary Englishteaspoontea‧spoon /ˈtiːspuːn/ ●●○ noun [countable] 1 DFUa small spoon that you use for mixing sugar into tea and coffee2 (also teaspoonful /ˈtiːspuːnfʊl/) (written abbreviation tsp)DFCAMOUNT the amount that a teaspoon can hold, used as a unit for measuring food or liquid in cookingteaspoon of Add a teaspoon of salt.
Examples from the Corpus
teaspoon• Add 1 teaspoons of the salt and macaroni; cook until almost tender, but still a little firm to the bite.• Remove from heat and add 2 tablespoons butter and 1 teaspoon vanilla.• Season salad to taste with salt and pepper, add remaining 1 teaspoon fish sauce, if desired.• Gently squeeze lemons open and place / 2 teaspoon salt in center of each.• Add a teaspoon of salt, and a sprinkling of milled pepper. 