ticket agent vs vendor

ticket agent and vendor both are nouns.

Word	Noun	Adjective	Verb	Adverb
ticket agent	Yes	No	No	No
vendor	Yes	No	No	No

As nouns, vendor is a hypernym of ticket agent; that is, vendor is a word with a broader meaning than ticket agent:

ticket agent: someone who sells tickets (e.g., theater seats or travel accommodations)
vendor: someone who promotes or exchanges goods or services for money

Other hypernyms of ticket agent include marketer, seller, trafficker, vender.

ticket agent (noun)	vendor (noun)
someone who sells tickets (e.g., theater seats or travel accommodations)	someone who promotes or exchanges goods or services for money