meme \MEEM\ noun. 1 : an idea, behavior, style, or usage that spreads from person to person within a culture. 2 : an amusing or interesting item (such as a captioned picture or video) or genre of items that is spread widely online especially through social media.
A pictogram, also called a pictogramme, pictograph, or simply picto,[1] and in computer usage an icon, is a graphic symbol that conveys its meaning through its pictorial resemblance to a physical object. Pictographs are often used in writing and graphic systems in which the characters are to a considerable extent pictorial in appearance. A pictogram may also be used in subjects such as leisure, tourism, and geography.
US sign warning that a stop sign is ahead
Pictography is a form of writing[citation needed] which uses representational, pictorial drawings, similarly to cuneiform and, to some extent, hieroglyphic writing, which also uses drawings as phonetic letters or determinative rhymes. Some pictograms, such as Hazards pictograms, are elements of formal languages.
Pictograph has a rather different meaning in the field of prehistoric art, including recent art by traditional societies and then means art painted on rock surfaces, as opposed to petroglyphs; the latters are carved or incised. Such images may or may not be considered pictograms in the general sense.
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