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A picture dictionary or pictorial dictionary is a dictionary where the definition of a word is displayed in the form of a drawing or photograph. Picture dictionaries are useful in a variety of teaching environments, such as teaching a young child about their native language, or instructing older students in a foreign language, such as in the Culturally Authentic Pictorial Lexicon. Picture dictionaries are often organized by topic instead of being an alphabetic list of words, and almost always include only a small corpus of words.
A similar but distinct concept is the visual dictionary, which is composed of a series of large, labelled images, allowing the user to find the name of a specific component of a larger object.