* If "Vet" is used as a short form for "Veterinarian," it should be capitalized. This is because it's a proper noun, referring to a specific profession.
* If "vet" is used as a verb meaning "to examine or inspect," it should be lowercase. This is because it's a common verb, not a specific name.
For example:
* "I took my dog to the vet." (Vet is capitalized because it refers to a specific veterinarian.)
* "The mechanic vetted the car before I bought it." (Vet is lowercase because it's the verb "to examine.")