A pictogram, also called a pictogramme, pictograph, or simply picto, and in computer usage an icon, is an ideogramthat 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.
An ideogram or ideograph (from Greek ἰδέα idéa “idea” and γράφω gráphō “to write”) is a graphic symbol that represents an idea or concept, independent of any particular language, and specific words or phrases. Some ideograms are comprehensible only by familiarity with prior convention; others convey their meaning through pictorial resemblance to a physical object, and thus may also be referred to as pictograms.
An emoji (/iˈmoʊ.dʒi/, plural emoji or emojis, from Japanese 絵文字えもじ “emoji”, pronounced [emodʑi]) is an ideogram orsmiley used in an electronic message or on a Web page. Emoji are used much like ASCII emoticons or kaomoji and exist in various genres, including facial expressions, common objects, places and types of weather, and animals.
Originally meaning pictograph, the word emoji comes from Japanese e (絵, “picture”) + moji (文字, “character”). The apparent resemblance to the English words “emotion” and “emoticon” is purely coincidental.