not a hundred miles from; within a hundred miles of: near, close to, in or at; also figurative; (all the same in) a hundred years (hence) (and…

a million to one: a million chances to one; a very low probability; (occasionally in odds-on sense) a very high probability. Also millions to one…

(odds reflecting) a low probability, esp. of a favourable outcome; cf. long shot, n. 3.

colloquial. A venture or undertaking with great potential but with little chance of success; a far-fetched explanation, a wild guess; spec.…

A remote chance, a possibility; a contingency out of the probable course. Now frequently in on the off-chance: just in case.

an unlikely chance; (also) a chance involving great risk.

Designating or relating to a very remote chance or possibility. Esp. in outside chance.

Well supplied with what is needful or desirable. a fat lot: a large amount, a great deal: always ironical and implying ‘very little, hardly…

In positive or conditional contexts: to have the slightest chance; to have the faintest hope.