translator

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun One that translates, especially.
• noun One employed to render written works into another language.
• noun A computer program or application that renders one language or data format into another.
• noun An interpreter.

from The Century Dictionary.

• noun One who or that which translates.
• noun Specifically— One who renders something spoken or written in one language into another: as, he held the office of public translator.
• noun A cobbler of a low class, who manufactures boots and shoes from the material of old ones, selling them at a low price to second-hand dealers.
• noun plural Second-hand boots mended and sold at a low price.
• noun In telegraphy, a sensitive receiving-instrument used for retransmitting a message, or for translation: commonly called a relay.
• noun Any instrument for converting one form of energy into another: thus, the magneto-electric engine which transforms the power of a steam-engine into electricity is a translator.

from the GNU version of the Collaborative International Dictionary of English.

• noun One who translates; esp., one who renders into another language; one who expresses the sense of words in one language by equivalent words in another.
• noun (Teleg.), engraving A repeating instrument.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A person who translates text, film, or other material into a different natural language.
• noun by extension One that makes a new version of a source material in a different language or format.
• noun proscribed A language interpreter.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun someone who mediates between speakers of different languages
• noun a program that translates one programming language into another
• noun a person who translates written messages from one language to another