1. remove unwanted stuff; purify or cleanse.   impinge   purge   simulate   oscillate   Hint Half-n-half Clue   2. decrease in size or strength.   incorporate   weather   simulate   wane   Half-n-half Clue   3. unite by intertwining.   perturb   vent   masticate   splice   Half-n-half Clue   4. mean or insinuate.   invalidate   ruminate   imply   precipitate   Half-n-half Clue   5. soak in some medium till saturated.   imply   secrete   incorporate   steep   Half-n-half Clue   6. multiply and spread.   implode   simulate   propagate   perforate   Half-n-half Clue   7. introduce into a larger body or unite.   simulate   postulate   incorporate   probe   Half-n-half Clue