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definitions

any day

1

No particular time, as in It doesn't matter when; any day is fine with me.

2

Also, any day now. Quite soon, as in I might get a call any day, or There could be a snowstorm any day now.

3

Also, any day of the week. Every day, as in I could eat fresh corn any day of the week. All three senses employ any in the sense of “no matter which,” a usage dating from a.d. 1000.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

Examples from the Web for any day

Historical Examples of any day

  • He also seems to think lynching an any-day possibility in the streets of New York.

    The Land of Contrasts

    James Fullarton Muirhead