Meaning

To adapt to local customs or ways, blending in.

Origin

From 4th-century Rome, St. Ambrose to Augustine; 'when in Rome, do as Romans,' English by 1530s in a letter. A 1670 proverb lists it.

Variants

  • In Rome

Usage Examples

  • They nap at noon? When in Rome, I guess.
  • When in Rome, she wore the local garb.
  • Loud here? When in Rome; shout back!

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