1a person who shows the way to others, especially one employed to show tourists around places of interest:a tour guide
a professional mountain climber in charge of a group.
2a person who advises others, especially in matters of behaviour or belief:his spiritual guide
a thing that helps someone to form an opinion or make a decision or calculation:your resting pulse rate is a rough guide to your general physical condition
a book, document, or display providing information on a subject or about a place:a comprehensive guide to British hotels and restaurants
3a structure or marking which directs the motion or positioning of something:the guides for the bolt needed straightening
4 (Guide) a member of the Guide Association.
1 [with object and adverbial of direction] show or indicate the way to (someone):he guided her to the front row and sat beside her figurativeinformation is available to guide you through the planning and development process
[with object] direct the motion or positioning of (something):the groove in the needle guides the thread
2 [with object] direct or influence the behaviour or development of:his life was guided by his religious beliefs
late Middle English: from Old French guide (noun), guider (verb), of Germanic origin; related to wit2