Teaspoon (noun)

A small spoon used for stirring tea or coffee, or as a cooking measure equivalent to 5 milliliters (0.17 fluid ounces).

Origin:

Late 16th century: from tea + spoon.

Examples:

1. She added a teaspoon of sugar to her tea.
2. He measured a teaspoon of salt for the recipe.
3. The teaspoon is a common unit of measurement in cooking.
4. The teaspoon was used to stir the coffee.
5. The teaspoon is smaller than a tablespoon.