What is a key aspect of language study defined by semantics?

The key aspect of language study defined by semantics is the meaning and interpretation of words. Semantics delves into how meaning is constructed, conveyed, and understood through language. It encompasses the relationships between signs and what they refer to, including the nuances of meaning that words can have in different contexts. Understanding semantics is essential for grasping how language functions to express ideas, emotions, and intentions, which is critical for effective communication, especially for learners of English as a second language.

The other aspects mentioned, such as the arrangement of words in a sentence, the sound patterns of language, and the role of morphemes, pertain to different linguistic disciplines like syntax, phonology, and morphology, respectively. Each of these areas contributes to the overall structure and function of language, but they do not specifically address the meanings of words and phrases, which is the central concern of semantics.