1. split into two opposite groups.   polarize   partition   postulate   precipitate   Hint Half-n-half Clue   2. lay down as basis or truth.   masticate   ruminate   pulverize   postulate   Half-n-half Clue   3. decrease in size or strength.   incorporate   precipitate   wane   quarantine   Half-n-half Clue   4. complete or form into whole.   manipulate   imply   precipitate   integrate   Half-n-half Clue   5. disturb or agitate.   infer   perturb   invalidate   weather   Half-n-half Clue   6. interject or insert between.   weather   perforate   interpolate   invert   Half-n-half Clue   7. express or pour forth.   secrete   pulverize   vent   interpolate   Half-n-half Clue