become thin and lean, become soft and supple,get dissolved, turn into liquid

mix, be friends with

collapse, become weak, be defeated in argument, suffer from a sudden misfortune

together

be very thin due to sickness or grief

multitudes, large crowds

drink something after dissolving it in a liquid (as a medicine, etc.)

only the wearer knows where the shoe pinches

recover fully from a serious illness, recover from aftermath of childbirth