1、vt. 查看;查看（或人往日的记载、资历等）;调理 if something is vetted, it is checked carefully to make sure that it is acceptable to people in authority.
2、vi. 当兽医 a vet is someone who is qualified to treat sick or injured animals
3、n. 老红军;〈美口〉同“veteran“ a vet is someone who has served in the armed forces of their country, especially during a war.