When we mention the WF speakswe know it shows 3 person Sg, Present Tense. When we describe a WF we never think of its lexical meaning instead we concentrate on its grammatical meaning.Д®.g. A WF is always a carrier of grammatical information. The WFmay be equivalent to the word but it presents an isolated unit. The root- the morpheme that conveys lexical meaning of a word, the basic part of the word. morphologically -ren - children, -en - oxen, - sheep, deerДЄll kinds of environment in which a morpheme can occur are called -distribution. morpheme of plurality Cats, Dogs, Houses Д®.g. In speech morphemes are represented by allomorphs: phonological and morphological.Д®.g. A morpheme is an exponent of a grammatical category. The morpheme itself has a purely relational grammatical meaning which is revealed only by contrast with some other morpheme or word-form. A for-building morpheme may be defined as an element of the word which signals the kind of grammatical meaning attached to the word by the presence of the morpheme. But morphemes in English are mostly word-building morphemes, so a grammatical morpheme is not defied here either. According to Gleason a morpheme is a minimal unit in the plane of context which relates to some units in the plane of expression.

But this definition is considered to be defective as it doesn't specify what meaning it meant, we don't know if the word or form building morphemes are meant.

$exponent word form.$

American linguist Bloomsfield defined the morpheme as a minimal meaningful unit. Morphology is a branch of linguistics that studies morphemes.

Exponent word form.