Thrust forward is an action that involves pushing or propelling something in a certain direction. The crossword solutions for this term are LUNGE (5 letters), OBTRUDE (7 letters), PROPEL (6 letters), IMPEL (5 letters), PROTRUDE (8 letters), and CATAPULT (8 letters). All of these words have similar meanings, but they differ in terms of the force used to move something. LUNGE and IMPEL involve a sudden, forceful movement, while OBTRUDE and PROTRUDE involve pushing something outwards. PROPEL and CATAPULT involve a more powerful force, as they involve launching something forward.