A person who provides assistance and information to people on organised tours.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "tour guide" in a sentence
"How is Sveta Kurdina, who blinks nervously in the front of the bus as she tries to adjust a microphone, a better tour guide than me?"
"As they drove, Chirnian gave them what sounded like a tour guide spiel about the monastery."
"IN THE BEGINNING OF my second year, my English professor Natalia Borisovna pulls me aside and says there is an opening in the House of Friendship and Peace, where I used to work as a tour guide in the ninth grade."