(broadcasting) A combination of letters and numbers used to identify a radio or television station.

plural of call sign

plural of book signing

(authorship) An event where an author signs copies of her/his books for fans.

Any of 20 glyphs used, along with a number from 1 to 13, in traditional Mesoamerican calendars to identify their 260 days.

The symbol §, used to refer to a particular section of a document, such as a legal code.

plural of section sign

(medicine) Electric sensations of the spine and limbs induced by flexing the neck forward.

(medicine) Electric sensations of the spine and limbs induced by flexing the neck forward.

(baseball) A sign from the third base coach, or whoever the batter receives signals from, telling the batter that no matter what he will not swing at the next pitch.