The Answers for Wordscapes Level 50146 from the Valley 60 pack and Master group are: ail, aim, anima, animal, lain, lam, mail, mailman, main, mam, mama, mania, mil, nail, and nil.
Just a heads-up: the puzzle layout on Master levels is autogenerated, so the grid you see here might look a little different than the one in your game.