- iconAn image, symbol, picture, portrait, or other representation, usually as an object of religious devotion.
- eikonalDescribing the properties of a class of partial differential equation encountered in descriptions of wave propagation.
- icono-Forms terms relating to images or to icons
- iconologyThe study of icons in art or art history.
- iconomaticThe use of pictographs to represent their sounds, as in English rebuses using an eye to mean I or in Chinese phonetic transcription of foreign terms into characters.
- iconotypeAn illustration of a biological specimen that serves as a holotype or lectotype (type specimen and it becomes the type illustration). It is not an illustration of a holotype or lectotype. In the 18th and early 19th century, iconotypes were designated as type specimens when preserved specimens were not available. In the 21st century, iconotypes are being used where a live animal is recorded and then released.