Word class in the context of "Shortening (linguistics)"

In linguistics, clipping, also called truncation or shortening, is word formation by removing some segments of an existing word to create a diminutive word or a clipped compound. Clipping differs from abbreviation, which is based on a shortening of the written, rather than the spoken, form of an existing word or phrase. Clipping is also different from back-formation, which proceeds by (pseudo-)morpheme rather than segment, and where the new word may differ in sense and word class from its source. In English, clipping may extend to contraction, which mostly involves the elision of a vowel that is replaced by an apostrophe in writing.

Relational nouns, or relator nouns, are a word class in many languages. They are characterized as functioning syntactically as nouns although they convey the meaning for which other languages use adpositions (prepositions and postpositions). In Mesoamerican languages, the use of relational nouns constitutes an areal feature of the Mesoamerican linguistic area, including the Mayan languages, Mixe–Zoquean languages, and Oto-Manguean languages.

Relational nouns are also widespread in Southeast Asia (e.g. Vietnamese, Thai), East Asia (e.g. Mandarin Chinese, Japanese, Lhasa Tibetan), Central Asia (e.g. the Turkic languages), Armenian, the Munda languages of South Asia (e.g. Sora), and in the Micronesian languages.

A compound is a word composed of more than one free morpheme. The English language, like many others, uses compounds frequently. English compounds may be classified in several ways, such as the word classes or the semantic relationship of their components.

A lexical rule is a form of syntactic rule used within many theories of natural language syntax. These rules alter the argument structures of lexical items (for example verbs and declensions) in order to alter their combinatory properties.

Lexical rules affect in particular specific word classes and morphemes. Moreover, they may have exceptions, do not apply across word boundaries and can only apply to underlying forms.

An ideophone (also known as a mimetic or expressive) is a member of the class of words that depict sensory imagery or sensations, evoking ideas of action, sound, movement, color, or shape. The class of ideophones is the least common syntactic category cross-linguistically; it occurs mostly in African, Australian, and Amerindian languages, and sporadically elsewhere. Ideophones resemble interjections but are different owing to their special phonetic or derivational characteristics, and based on their syntactic function within the sentence. They may include sounds that deviate from the language's phonological system, imitating—often in a repetitive manner—sounds of movement, animal noises, bodily sounds, noises made by tools or machines, and the like.

While English does have ideophonic or onomatopoetic expressions, it does not contain a proper class of ideophones because any English onomatopoeic word can be included in one of the classical categories. For example, la-di-da functions as an adjective while others, such as zigzag, may function as a verb, adverb or adjective, depending on the clausal context. In the sentence "The rabbit zigzagged across the meadow", the verb zigzag takes the past -ed verb ending. In contrast, the hypothetical example *"The rabbit zigzag zigzag across the meadow" emulates an ideophone but is not idiomatic to English.