One indifferently, out of an indefinite number; one indefinitely, whosoever or whatsoever it may be.
source: Webster 1913
adverb
to any degree or extent
It isn't any better.
source: WordNet 3.0
To any extent; in any degree; at all.
source: Webster 1913
adjective satellite
one or some or every or all without specification
Give me any peaches you don't want. Not any milk is left. Any child would know that. Pick any card. Any day now. Cars can be rented at almost any airport. At twilight or any other time. Beyond any doubt. Need any help we can get. Give me whatever peaches you don't want. No milk whatsoever is left.