cọc
noun

stake (a piece of wood or other material, usually long and slender, pointed at one end)
pile (of coins)

guốc
noun

a piece of footwear that is usually made of wood, resembles a high-heeled flip-flop
any piece of footwear that resembles this type of footwear; a clog, geta, sabot, etc.
a piece of high-heeled footwear, except a boot; a slingback, mule, pump, stiletto, wedge, platform, kitten heel, etc.
(anatomy) a hoof