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A 'word' is a unit of language that carries meaning and consists of one or more morphemes which are linked more or less tightly together, and has a phonetical value. Typically a word will consist of a root or stem and zero or more affixes. Words can be combined to create phrases, clauses, and sentences. A word consisting of two or more stems joined together is called a compound.

Contents

Difficulty in defining the term

Words in different classes of languages

Complexity of word boundaries in speech

Determining word boundaries

External links

Difficulty in defining the term

Depending on the language, words can sometimes be difficult to identify or delimit. While word separators, most often spaces, are commonplace in the written corpus of several languages, some languages such as Chinese and Japanese do not use these. Words may contain spaces, however, if they are compounds or proper nouns such as ''ice cream'' and ''the United States of America''. Furthermore, synthetic languages often combine many different pieces of lexical data into single words, making it difficult to boil them down to the traditional sense of words found more easily in analytic languages; this is especially problematic for polysynthetic languages such as Inuktitut and Ubykh where entire sentences may consist of single such words. Especially confusing are languages such as Vietnamese, where spaces do not necessarily indicate breaks in words and boundaries must be determined by the context of the piece.
However, of all situations, the most confusing is those for oral languages, which potentially only offer phonolexical clues as to where word boundaries lie. Sign languages pose a similar problem as well, as does body language.
Official words, however, would be documented in a dictionary of whichever language you are categorizing them under.

Words in different classes of languages

In synthetic languages, a single word stem (for example, ''love'') may have a number of different forms (for example, ''loves'', ''loving'', and ''loved''). However, these are not usually considered to be different words, but different forms of the same word. In these languages, words may be considered to be constructed from a number of morphemes (such as ''love'' and ''-s'').

Complexity of word boundaries in speech

In spoken language, the distinction of individual words is even more complex: short words are often run together, and long words are often broken up. Spoken French has some of the features of a polysynthetic language: ''il y est allé'' ("He went there") is pronounced //. As the majority of the world's languages are not written, the scientific determination of word boundaries becomes important.

Determining word boundaries

There are five ways to determine where the word boundaries of spoken language should be placed:
;Potential pause
:A speaker is told to repeat a given sentence slowly, allowing for pauses. The speaker will tend to insert pauses at the word boundaries. However, this method is not foolproof: the speaker could easily break up polysyllabic words.
;Indivisibility
:A speaker is told to say a sentence out loud, and then is told to say the sentence again with extra words added to it. Thus, ''I have lived in this village for ten years'' might become ''I and my family have lived in this little village for about ten or so years''. These extra words will tend to be added in the word boundaries of the original sentence. However, some languages have infixes, which are put inside a word. Similarly, some have separable affixes; in the German sentence "Ich 'komme' gut zu Hause 'an'," the verb ''ankommen'' is separated.
;Minimal free forms
:This concept was proposed by Leonard Bloomfield. Words are thought of as the smallest meaningful unit of speech that can stand by themselves. This correlates phonemes (units of sound) to lexemes (units of meaning). However, some written words are not minimal free forms, as they make no sense by themselves (for example, ''the'' and ''of'').
;Phonetic boundaries
:Some languages have particular rules of pronunciation that make it easy to spot where a word boundary should be. For example, in a language that regularly stresses the last syllable of a word, a word boundary is likely to fall after each stressed syllable. Another example can be seen in a language that has vowel harmony (like Turkish): the vowels within a given word share the same ''quality'', so a word boundary is likely to occur whenever the vowel quality changes. However, not all languages have such convenient phonetic rules, and even those that do present the occasional exceptions.
;Semantic units
:Much like the abovementioned minimal free forms, this method breaks down a sentence into its smallest semantic units. However, language often contains words that have little semantic value (and often play a more grammatical role), or semantic units that are compound words.
In practice, linguists apply a mixture of all these methods to determine the word boundaries of any given sentence. Even with the careful application of these methods, the exact definition of a word is often still very elusive.
All in all, a word is a very powerful concept that permits us to comunicate with others and interact with the rest of the world.

External links

★ What Is a Word? (PDF)