A journey through a particular building, estate, country, etc. / A guided visit to a particular place, or virtual place.

(intransitive) To make a journey / (transitive) To make a circuit of a place

(dated) A tower.

(obsolete) To toot a horn.

Working for a short time in different places. / Intended for a journey through a country or a region, related to tourism.

present participle of tour

(informal) A touring car.

(cycling, by ellipsis) The Tour de France.

simple past tense and past participle of tour

On a journey through a given list of places, such as by an entertainer performing concerts.