What is it? Lexical density measures how much information there is in a text. Lexical density is defined as the number of lexical words (or content words) divided by the total number of words. Lexical words give a text its meaning and provide information regarding what the text is about. Lexical words are simply nouns, adjectives, verbs, and adverbs. Nouns tell us the subject, adjectives tell us more about the subject, verbs tell us what they do, and adverbs tell us how they do it.
