vet /vɛt/noun 2verb 1forms 4 noun2 •a doctor who treats animals that are sick or hurtColin Cameron, a vet who examined the dead animal, said there was "no doubt the kitten would have suffered unnecessarily" before dying. — 2011 •(US, informal) A veteran (a former soldier or other member of armed forces).“A former soldier, sir. A vet. Theyʼre all vets, a little shellshocked.” — 1952 verb1 •To thoroughly check or investigate particularly with regard to providing formal approval.The FBI vets all nominees to the Federal bench. formsvetted · vetting · vets · VETs