Definition of sou'-west:
(n) :
(nautical) Alternative form of southwest. [The intercardinal compass point halfway between south and west; specifically at a bearing of 225°.]
(adj) :
(nautical) Alternative form of southwest. [Of, in or pertaining to the southwest; southwestern.]
(adv) :
(nautical) Alternative form of southwest. [Towards or in the direction of the southwest; southwestwards.]