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Definition: offset

(1) See offset press.

(2) The distance from a starting point, either the start of a file or the start of a memory address. Its value is added to a base value to derive the actual value. An offset into a file is simply the character location within that file, usually starting with 0; thus "offset 240" is actually the 241st byte in the file. See relative address.

(3) In word processing, the amount of space a document is printed from the left margin.