Yes;
A word is a unit of language that carries meaning and consists of one
or more morphemes.
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...a morpheme is the smallest language unit that carries a semantic
interpretation. Morphemes are, generally, a distinctive collocation of
phonemes (as the free form pin or the bound form -s of pins) having no
smaller meaningful members.
English example: The word "unbelievable" has three morphemes "un-",
(negatory) a bound morpheme, "-believe-" a free morpheme, and "-able".
"un-" is also a prefix, "-able" is a suffix. Both are affixes.
Types of morphemes
-Free morphemes like town, dog can appear with other lexemes (as in
town-hall or dog-house) or they can stand alone, or "free". Allomorphs
are variants of a morpheme, e.g. the plural marker in English is
sometimes realized as /-z/, /-s/ or /-?z/.
-Bound morphemes like "un-" appear only together with other morphemes
to form a lexeme. Bound morphemes in general tend to be prefixes and
suffixes.
-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).
-Derivational morphemes can be added to a word to create (derive)
another word: the addition of "-ness" to "happy", for example, to give
"happiness".
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In human language, a phoneme is the basic theoretical unit that can be
used to distinguish words or morphemes. That is, changing a phoneme in
a word produces either nonsense, or a different word with a different
meaning.
Phonemes in {*filter*}languages are not physical sounds, but mental
abstractions of speech sounds. A phoneme is a family of speech sounds
(phones) that the speakers of a language think of as being, and usually
hear as, the same sound. A "perfect" alphabet is one that has one
symbol for each phoneme.
In sign languages, a phoneme is a similarly basic theoretical unit of
hand shape, motion, position, or {*filter*} expression. It was formerly
called a chereme, but usage changed to phoneme when it was recognized
that the mental abstractions involved are essentially the same as in
{*filter*}languages.
Phonemics, a branch of phonology, is the study of the systems of
phonemes of languages.
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In phonetics, a vowel is a sound in spoken language that is
characterized by an open configuration of the vocal tract where there
is no build-up of air pressure above the glottis.
This contrasts with consonants, which are characterized by a
constriction or closure at one or more points along the vocal tract.
The additional requirement is that vowels function as syllabic units:
it is this criterion that distinguishes vowels from semivowels (and
approximants, which in some languages may be slightly more
constricted).
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