Lexical Morphemes :
Set of ordinary nouns, adjectives and verbs, which we think of as the words which carry the 'content' of messages we convey. e.g. man, house, car, happy, long, yellow, look, break, join
Functional/GrammaticalMorphemes :
Set of the functional words in the language such as conjunctions, prepositions,articles, and pronouns. e.g. and, but, because, on, near, above,a, an, the, they, she, it.
