Q. Is sizable or sizeable the preferred American English spelling? Our searches have come up with conflicting answers.
A. If your searches give you conflicting answers, you can be fairly certain that there is no significant preference. But a dictionary will tell you whether one is preferred. The entry in Merriam-Webster is this: sizable or sizeable. The “or” means that these two spellings are equal variants (see the Help pages at Merriam-Webster, under “Variants”). Chicago usually chooses the first-listed term, even for equal variants, so we prefer sizable.