Class of Word

In the all approach, word has been grouped based on the lexical meaning. In this situation we got the terminology of noun, pronoun, adjective, verb, adverb, preposition, conjunction and interjection.
MacFadyen (2008) states that, traditional grammar classifies words based on eight parts of speech: the verb, the noun, the pronoun, the adjective, the adverb, the preposition, the conjunction, and the interjection.

Each part of speech explains not what the word is, but how the word is used. In fact, the same word can be a noun in one sentence and a verb or adjective in the next.

 In the modern approach, word has been classification based on the word classes in the nation this classification could be reduce the ambiguous of the word as in the ancient approach. Those words divided into two classes (1) Content words and (2) function words. Content words are the words that have the lexical meaning. The members of the content words are noun, personal pronoun, verb, adjective, and adverb. Whereas function words are the words which have a little or no lexical meaning but still have a function.