killing two birds with one stone

One action, two results

Killing two birds with one stone means accomplishing two goals with a single action.

The image is of efficiency—one effort, double the result: I'll drop off the package on my way to the gym, killing two birds with one stone.

The phrase sometimes draws playful variations from those squeamish about dead birds.

Related

wearing many hats · streamlining · one-stop shop · trade-offs · best of both worlds · critical thinking · synergy · creative solutions · one fell swoop · ingenuity · strategic planning · simplification · dual-purpose · economizing · consolidation · resourcefulness · cost-benefit analysis · prioritization

Opposites
efficiency

killing two birds with one stoneinefficiency

Suboptimal use of resources

spinning one's wheels · redundancy · spinning your wheels · reinventing the wheel · burning the candle at both ends

outcome success

killing two birds with one stonesingle-tasking

Focusing on one activity

chasing one's tail · running in place · missing the mark · striking out · treading water

strategic approach

killing two birds with one stonecompartmentalizing

Isolating thoughts or feelings

single-tasking · one step at a time · divide and conquer

Family

killed, killer, killers, birdie, birdies, birding, stones, stoned

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G