Outlook
Part of speech: noun
Definition: A place from which something can be viewed. The view from such a place. An attitude or point of view. Expectation for the future.
Example sentence: I'm someone who has always had a positive outlook towards life.
Lookout
Part of speech: noun
Definition: A vantage point with a view of the surrounding area.A person on watch for approaching enemy, police, etc.
Example sentence: I am the product of the American education system. It is a system that has always been on the lookout for bright boys and girls. It spotted me when I was 14, and I owe a tremendous debt to my alma mater.