Morpheme Totally Explained

Everything about Morpheme totally explained

In morpheme-based morphology, a morpheme is the smallest linguistic unit that has semantic meaning.In spoken language, morphemes are composed of phonemes (the smallest linguistically distinctive units of sound), and in written language morphemes are composed of graphemes (the smallest units of written language).
The concept morpheme differs from the concept word, as many morphemes can't stand as words on their own. A morpheme

is free if it can stand alone, or bound if it's used exclusively alongside a free morpheme. Its actual phonetic representation is the morph, with the morphs representing the same morpheme being grouped as its allomorphs.

English example: The word "unbreakable" has three morphemes: "un-" (meaning not x), a bound morpheme; "-break-", a free morpheme; and "-able", a bound morpheme. "un-" is also a prefix, "-able" is a suffix. Both are affixes.
The morpheme plural-s has the morph "-s",, in cats ([kæts]), but "-es", [ɪz], in dishes ([dɪʃɪz]), and even the voiced "-s", [z], in dogs ([dɒgz]). These are the allomorphs of "-s". It might even change entirely into -ren in children.

Types of morphemes

Free morphemes like town, and dog can appear with other lexemes (as in town hall or dog house) or they can stand alone, for example "free".
Bound morphemes (or affixes) like "un-" appear only together with other morphemes to form a lexeme. Bound morphemes in general tend to be prefixes and suffixes. Unproductive, non-affix morphemes that exist only in bound form are known as "cranberry" morphemes, from the "cran" in that very word.
Derivational morphemes can be added to a word to create (derive) another word: the addition of "-ness" to "happy," for example, to give "happiness." They carry semantic information.
Inflectional morphemes modify a word's tense, number, aspect, and so on (as in the "dog" morpheme if written with the plural marker morpheme "-s" becomes "dogs"). They carry grammatical information.
Allomorphs are variants of a morpheme, for example the plural marker in English is sometimes realized as [-z], [-s] or [-ɪz].

Other variants

Null morpheme

Root morpheme

Word stem

Morphological analysis

In natural language processing for Japanese, Chinese and other languages, morphological analysis is the process of segmenting a given sentence into a row of morphemes. It is closely related to Part-of-speech tagging, but word segmentation is required for these languages because word boundaries are not indicated by blank spaces. Famous Japanese morphological analysers include Juman

, ChaSen and Mecab

Further Information

Get more info on 'Morpheme'.

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