sb. (a.) slang. [Short for typographer or typographic.] A typographer, a printer; spec. a compositor, b. attrib. or as adj. = TYPOGRAPHIC.

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1816.  Massachusetts Spy, 7 Aug. (Thornton). [Printers] will confer a favour on a brother typo [etc.].

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1858.  Printer, Dec. (Bartlett). A manuscript written in 1714–1716, by two ambitious typos.

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1830.  Stationer, XXXV. 3. From the humble typo to the grand publisher in his chair.

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1891.  Anthony’s Photogr. Bull., IV. 110. Good pressmen for color work, for litho. and typo. presses…. What does a typo pressman know about lithographic inks, damping, [etc.]?

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1893.  Leland, Mem., I. 286. The typos, reporters, and subs [on a newspaper staff].

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