guide
US /ɡaɪd/
UK /ɡaɪd/

1.
a person who shows the way to others, especially one employed to show tourists around places of interest.
:
•
Our tour guide was very knowledgeable about the city's history.
•
He acted as a guide for the lost hikers.
2.
a book or other source of information that gives advice or instructions.
:
•
I bought a travel guide before my trip to Europe.
•
This user guide explains how to operate the new software.
1.