What are the gender symbols on the bathroom doors at school and other illustrated symbols that stand for some concept called? icons
isotypes
pictographs

pictographs

Explanation:

    Pictograms or pictographs are signs that, through a figure or a symbol, allow the representation of something to develop. Certain ancient alphabets were created around pictograms.

    In prehistory, man recorded various events through pictograms. The figures that appear in the rock paintings, for example, can be considered like pictograms. In the development of writing, therefore, pictograms were essential.

    Pictograms help eliminate language barriers as they are universally understandable. Therefore, they are often used as signals, giving useful information or making warnings.

    The image (tablet) of a knife and fork, or fork and spoon, is a pictogram referring to a restaurant. In a similar sense, a person's drawing in a bed is related to a health center. These are pictograms whose messages can be understood by people from any country, regardless of the languages they speak.