Answer:
Word class are the different types into which words are grouped according to their form, function or meaning.
Step-by-step explanation:
In English grammar, a word-class, also called part of speech, correspond to a set of words that display the same formal properties. English has four major word classes: nouns, verbs, adjectives, and adverbs. In addition to these four major word classes, the other word classes include prepositions, pronouns, determiners, conjunctions, and interjections.
Bearing the explained above in mind, it could be said that the different types into which words are grouped according to their form, function or meaning correspond to the word class, also called part of speech.