IDEOGRAM:

                              Ideogram or ideograph is a graphical symbol that represents an idea, rather than a group of letters arranged according to the phonemes of a spoken language, as is done in alphabetic languages. Examples of ideograms include wayfinding signage, such as in airports and other environments where many people may not be familiar with the language of the place they are in, as well as Arabic numerals and mathematical notation, which are used worldwide regardless of how they are pronounced in different languages. The term "ideogram" is commonly used to describe logographic writing systems such as Egyptian hieroglyphs and Chinese characters. However, symbols in logographic systems generally represent words or morphemes rather than pure ideas.The use of ideograms is well established in the cuneiform scripts of the ancient Near East.