How do you spell Sift

Available Definitions:
1)  v. t. - To separate with a sieve, as the fine part of a substance from the coarse; as, to sift meal or flour; to sift powder; to sift sand or lime.
2)  v. t. - To separate or part as if with a sieve.
3)  v. t. - To examine critically or minutely; to scrutinize.