Take the word "MATERIALS" as an example -- what lexico-grammatical information does the KWIC suggest about the word?

Lexico gramatical means a combination of vocabulary (lexus) and grammar. It is a term which is intended to be comprehensive for the make-up of an utterance, though it does not include extra-linguistic factors such as tone and gesture. As I said in the first question the sentences structure’ help the students to understand both the meaning and usage of the word gramatically.