The term 'Sink One's Teeth Into' can be solved by three different crossword solutions: BITE (4 letters), GNAW (4 letters), and BITEON (6 letters). BITE is a verb meaning to use one's teeth to cut into something, GNAW is a verb meaning to chew on something persistently, and BITEON is a verb meaning to BITE into something with force. All three words imply the same action of using one's teeth to penetrate something.