The article deals with the verbalization of emotions from the linguistic perspective. The key objective of this scientific research is to present the interaction between human emotions and the way people express them through the language using different lexical units. The notion of emotion has been defined. Types of emotive vocabulary have been singled out. The attention has been paid to the parts of speech, which are mainly used to express the emotional state – interjections, adjectives, nouns, adverbs, and verbs. The difference between emotiveness, emotionality and expressiveness has been characterized. Expressive functions of language have also been considered in the article. The interconnection between emotions and language has been investigated.