Which term refers to an object or word used to represent a wider quality or concept?

The term that refers to an object or word used to represent a wider quality or concept is "Symbol." A symbol is a tangible representation that conveys a deeper meaning beyond its literal sense. For example, a dove is often used as a symbol of peace, encapsulating the broader concept of harmony and goodwill. Symbols allow for rich and layered interpretations within texts, making them essential in literature and art.

Allegory, while also representing deeper meanings, typically consists of a narrative or a complete story that illustrates a moral or political message through characters and events. Metaphor involves making a direct comparison between two unrelated things, suggesting that one thing is another, which is different from the representation aspect of a symbol. Imagery focuses on descriptive language that appeals to the senses, creating vivid pictures in the mind, but does not necessarily convey broader concepts on its own. Thus, "Symbol" is the most suitable term for representing wider concepts or qualities.