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In any of several fields of study that treat the use of signs — for example, in linguistics, logic, mathematics, semantics, semiotics, and philosophy of language — the extension of a concept, idea, or sign consists of the things to which it applies, in contrast with its comprehension or intension, which consists very roughly of the ideas, properties, or corresponding signs that are implied ...
a semantic component, also called a determinative or signific', one of a limited number of characters that supplies an element of meaning. In most cases this is also the radical under which a character is listed in a dictionary. As in ancient Egyptian writing, such compounds eliminated the ambiguity caused by phonetic loans.
Writing systems are used to record human language, and may be classified according to certain common features.. The usual name of the script is given first; the name of the languages in which the script is written follows (in brackets), particularly in the case where the language name differs from the script name.
However, Qiu reserves the term homograph to describe identically shaped characters with different meanings that emerge via processes other than semantic extension. An example homograph is 铊; 鉈, which originally meant 'weight used at a steelyard' (tuó). In the 20th century, this character was created again with the meaning 'thallium' (tā).
A straightforward method of introducing new terms in a language is to create a neologism, i.e. a completely new lexical item in the lexicon.For example, in the philosopher Heidegger's native German, he introduced neologisms to describe various concepts in his ontology (Dasein and Mitsein, for instance; both derived from common German words da and sein, etc.).
Most multi-semantic component characters contain two semantic components, for example, 信 (trust): semantic components 人 (people) and 言 (words), trust what people say. 尖 (pointed, sharp, tip): 小 (small) at the top and 大 (large) at the bottom. 拿 (take): 合 (close) your 手 (hands) together to take. Some characters are composed of ...
A metaphorical extension is the "extension of meaning in a new direction" through the popular adoption of an original metaphorical comparison. [1] The metaphorical extension is almost a universal and natural process in any language undergone by every word. In general, it's not even perceived in everyday usage as meaning change.
A semantic feature is a component of the concept associated with a lexical item ('female' + 'performer' = 'actress'). More generally, it can also be a component of the concept associated with any grammatical unit, whether composed or not ('female' + 'performer' = 'the female performer' or 'the actress').