guide-n; 4 Senses

Sense Number 1: a person in the role of pathfinder, advisor

Commentary: GUIDE[+person][+role][+pathfinder]

The hikers hired a guide to take them through the mountain pass.
The guru was the spiritual guide of hundreds of people seeking enlightenment.
This lady will be our guide for the museum tour today.
Let your conscience be your guide. (metaphoric extension)

WordNet 3.0 Sense Numbers: 1, 2, 5

Sense Number 2: an instructional document

Commentary: GUIDE[+artifact][+document][+instructional]

I looked through some travel guides of Croatia and Italy.
There is a diagram of this component on page 25 of the guide.
Mary couldn't find the maintenance and operation guide for her sewing machine.

WordNet 3.0 Sense Numbers: 3

Sense Number 3: anything which serves as a model or template

Commentary: GUIDE[+form][+model][+template]

It's a reasonable guide to assume there are six glasses to one bottle.
This policy has proven to be a poor guide for their nation's economic development.

WordNet 3.0 Sense Numbers: 4

Sense Number 4: a tool that aids positioning or motion of something

Commentary: GUIDE[+artifact][+tool][+to_aid][+positioning][+of_object]

The metal guide on the sewing machine helps you make a straight seam.
The carpenter used a guide to saw a clean straight length of timber.

WordNet 3.0 Sense Numbers: 1