"Slightly" is an adverb that describes a small degree or amount of something. It indicates that a change or difference is minimal, suggesting that it is not significant or substantial. For example, if someone says the weather is "slightly warmer," it means the temperature has increased, but only by a little. In everyday language, "slightly" can be used in various contexts, such as describing feelings, physical changes, or differences in opinions. For instance, if a person feels "slightly tired," it implies they are a bit fatigued but not overwhelmingly so. This word helps convey nuances in communication.