Tweak, as text, can be defined as making small changes or adjustments to a written piece. The two crossword solutions for this term are EMEND (5 letters) and EDIT (4 letters). EMEND is derived from the Latin word 'emendare' which means to correct or improve. EDIT is derived from the Latin word 'edere' which means to publish or produce. Both words refer to the act of making changes to a written piece in order to improve it.