Reverse Dictionary: TIP (information)

NOUNS
GRIFF a tip or piece of news or reliable information → 1891 Brit. sl.
GRIFFIN a tip, as in racing, etc → 1891 Brit. sl.
HARD WORD, THE a tip-off, a hint; a piece of inside information; a password → 1804 colloq.
IKEY-MO a tip, information → M19 sl.