STEW, BREW and CREW immediately come to mind.
thaw, crow, brow
a 6 letter word ending with a w is borrow.
jigsaw The 6 letter word ending with w is hollow, sorrow, pillow, etc.
Blow, Flow, Crow, Snow, Slow, Stow.
widow
endow
widow
escrow
throw, below, shrew
wheat
willows
Waltz.
shallow shallow