In publishing, a call-out or callout is a short string of text connected by a line, arrow, or similar graphic to a feature of an illustration or technical drawing, and giving information about that feature. The term is also used to describe a short piece of text set in larger type than the rest of the page and intended to attract attention.
In the utility industries, a callout is an instruction to report for emergency or special work at an unusual time or place.
In music, call-out hooks are small portions of a song, usually seven to ten seconds of a song's hook used by radio stations "in market research to assist in gauging the popularity of a song by the recognizability of its hook".
In the fine arts, a call-out is a notice calling for response from artists to contribute, apply or enter various proposed events, by curators and/or galleries.
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