Based on the clue '6 letter word meaning to expose as being false or ...', what is the answer?

Based on the clue '6 letter word for the costs activities involved i...', what is the answer? Based on the clue '6 letter word for the whistling sound produced by ...', what is the answer? Based on the clue '6 letter word go to the left now right back left t...', what is the answer? Based on the clue '6 letter word meaning mirthless sober or grave', what is the answer? Based on the clue '6 letter word meaning to talk in an incoherent fas...', what is the answer? Based on the clue '6 letter word used to express sorrow or regret', what is the answer? Based on the clue '6 letters hairlines do this get farther away into ...', what is the answer? Based on the clue '6 letters in english it means nothing nada zip zer...', what is the answer?