Which term is used to describe the rules for meaningful arrangement of words and phrases?

The term that describes the rules for the meaningful arrangement of words and phrases is syntax. Syntax refers to the structure of sentences and the way in which words are organized to convey ideas effectively. It governs how different parts of speech, such as nouns, verbs, and adjectives, are combined to form phrases and sentences that make sense in a given language. A solid understanding of syntax is crucial for effective communication, as it helps in constructing clear and coherent statements.

In contrast, the other terms refer to different aspects of language. Morphology deals with the structure of words and the construction of word forms, including prefixes and suffixes. Phonology focuses on the sound system of a language, particularly the rules for combining sounds. Semantics pertains to the meanings of words and how those meanings combine to form the meanings of phrases and sentences. Each of these areas plays an important role in language, but syntax specifically addresses how words are arranged to create meaning in a structured manner.