* "very" (meaning extremely or to a great degree) is a close sound-alike but has a completely different meaning.
* "vary" itself can be pronounced with a subtle variation, sounding almost like "fairy" in some dialects.
It's important to note that "vary" is often used in contexts where a homophone wouldn't make sense. If you're unsure about using "vary," check a dictionary or thesaurus for the best word for your specific meaning.