Final answer:
Ideographs are characters that merge multiple pictographs to express an idea, distinct from phonetics and are part of logographic writing systems such as hieroglyphic writing.
Step-by-step explanation:
Characters that combine two or more pictographs to represent an idea are known as ideographs. Unlike phonetics, which relate to sounds, ideographs convey concepts visually. Hieroglyphs and logograms are both associated with logographic writing systems, wherein signs, symbols, or pictures communicate words or syllables. For example, hieroglyphic writing, like that developed in Egypt around 3000 BCE, often represented both sounds and ideas, using a combination of alphabetic, syllabic, and word signs alongside pictorial representations of objects.