| index(noun, information, mark, sign, indication) |
| indication(noun, information, mark, sign, signal) |
| indicia(noun, information, mark, sign, indication) |
| infallibility(noun, certainty, principle, fact, reality) |
| info(noun, information, mark, sign, score) |
| information(noun, mark, sign, speech, indication) |
| inside track(noun, expression, certainty, principle, fact) |
| inspiration |
| inspired writings(expression, idiom, judeo-christian revelation) |
| instruction(regulation, rule, belief, statement, principle) |
| intelligence(noun, law, experience, case, matter) |
| issuance |
| last word(noun, expression, fact, doctrine) |
| law(noun, experience, case, matter, truth) |
| legitimacy(noun, truth, certainty, principle, fact) |
| lowdown(noun, case, detail, score, story) |
| mark(noun, information, sign, indication, signal) |
| materialization |
| matter-of-factness(noun, truth) |
| maxim(noun, certainty, principle, fact, reality) |