keep one's powder dry

keep (one's) powder dry

To be prepared to act with little advance notice. 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

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