An instance of suggesting a thought to oneself.
An autosuggest feature.
The practice of suggesting thoughts to oneself, as in autohypnosis.
Information which may lead one to a certain point or conclusion.
An object or a kind of indication which may be used as evidence.
Insight or understanding ("to have a clue [about]" or "to have clue". See have a clue, clue stick)
To provide with a clue.
To provide someone with information which he or she lacks (often used with "in" or "up").