keep one's powder dry

keep (one's) powder dry

To be prepared to act with little advance notice. The phrase refers to gunpowder, which needs to be kept dry in order to work properly. I know this job opportunity didn't work out, but keep your powder dry for the next one that comes along.
See also: dry, keep, powder
Farlex Dictionary of Idioms.

keep one's powder dry

Stay alert, be careful, as in Go ahead and take on the opposition, but keep your powder dry. This colloquial expression, which originally alluded to keeping gunpowder dry so that it would ignite, has been used figuratively since the 1800s but today is less common than take care.
See also: dry, keep, powder
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • keep (one's) powder dry
  • keep powder dry
  • keep your powder dry
  • put your faith in God, and keep your powder dry
  • put your faith in God, but keep your powder dry
  • put your trust in God, and keep your powder dry
  • put your trust in God, but keep your powder dry
  • trust in God and keep your powder dry
  • trust in God, but keep your powder dry
  • have a Chinaman on (one's) back