| directory(noun, information, influence, guide, key) |
| guiding light(noun, expression, information, influence, key) |
| hot lead(noun, expression, information, influence, key) |
| information(noun, influence, guide, signal, key) |
| instructions(noun, information, influence, guide, signal) |
| key(noun, information, influence, inspiration, signal) |
| landmark(noun, information, influence, signal, key) |
| libretto(noun, book) |
| lodestar(noun, information, guide, inspiration, signal) |
| mark(noun, information, influence, inspiration, key) |
| marker(noun, information, influence, inspiration, key) |
| numbers(noun, information, influence, guide, signal) |
| pamphlet(noun, book) |
| pointer(noun, information, influence, signal, key) |
| print(noun, information, influence, signal, key) |
| publication(noun, book) |
| reference book(expression, idiom) |
| sign(noun, information, influence, inspiration, key) |
| signal(noun, information, influence, inspiration, key) |
| signpost(noun, information, influence, guide, key) |