look high and low

look high and low (for someone or something)

To look absolutely everywhere for someone or something. We've been looking high and low for an apartment we can afford, but the housing market in this town is atrocious. I looked high and low, but I couldn't find my passport anywhere.
See also: and, high, look, low, someone
Farlex Dictionary of Idioms.

look high and low

(for someone or something) Go to look for someone or something high and low.
See also: and, high, look, low
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

look high and low

Seek everywhere, hunt for in all possible places. Oddly enough, high and low has a very old and quite different meaning, that is, designating people of all social conditions, high-born as well as low-born. This sense dates from about 1200; Shakespeare used it in The Merry Wives of Windsor (2.1): “He wooes both high and low, both rich and poor, both young and old.” In the current cliché, high and low refers simply to location, as in “I’ve looked high and low for the key and can’t find it anywhere.”
See also: and, high, look, low
The Dictionary of Clichés by Christine Ammer
See also:
  • look high and low (for someone or something)
  • hunt high and low
  • hunt high and low (for someone or something)
  • look for (someone or something) high and low
  • look for high and low
  • not hear of something
  • hear of
  • hear of (someone or something)
  • here, there, and everywhere
  • everywhere