plagiarize, plagiarise (British) 1. To take and to use without referencing from someone else's writing or speech. 2. To use and pass off (the ideas or writings of another) as one's own. 3. To appropriate for use as one's own; such as, passages or ideas from another person or people. 4. To put forth as original to oneself the ideas or words of an... Found on http://www.wordinfo.info/words/index/info/view_unit/1684/