What term is used to describe the act of explaining or understanding the meaning of something?

The term that accurately describes the act of explaining or understanding the meaning of something is "interpret." This word emphasizes not just providing a definition or translation of words, but rather involves a deeper engagement with the context and nuances to convey significance. Interpretation can apply to texts, art, data, and other forms of communication, allowing individuals to derive their understanding of the intended message or implications.

In contrast, defining focuses on delivering a straightforward meaning or description of a term, which might not capture its deeper connotations. Deciphering often refers to converting something coded or obscure into a comprehensible form, typically applied in contexts like solving puzzles or translating secret messages. Translating primarily deals with converting text or speech from one language to another, which does not necessarily encompass the broader understanding of meaning beyond language alone. Hence, "interpret" stands out as the most comprehensive term for understanding and explaining meaning.