Lexical (adjective)

1. Relating to or concerned with the vocabulary of a language or a particular word.
2. Relating to or concerned with the meaning of words or with dictionaries.

Origin:

From late latin 'lexicum' meaning 'a dictionary'.

Examples:

1. The lexical analysis of the text revealed the frequency of words and their distribution.
2. The lexical meaning of the word was looked up in a dictionary and was found to be ambiguous.
3. The lexical similarity between two languages was measured by the number of common words.
4. The lexical approach to language teaching emphasized the learning of words and their meanings.
5. The lexical database of the research project was designed to store and analyze words and their meanings.