A lexical rule is a guideline or principle that describes how words and their meanings can be formed or modified in a language. These rules help in understanding how different word forms relate to one another, such as how a base word can change into different parts of speech through processes like derivation or inflection. For example, a lexical rule may state that adding the suffix "-er" to the verb "teach" creates the noun "teacher", indicating someone who teaches. Lexical rules are important in linguistics and language learning, as they provide a framework for understanding the relationships between words and how new words can be generated from existing ones.

英語での「lexical rule」の定義と意味

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