mas·ter·stroke 
(măstər-strōk′)
(măstər-strōk′)n.
An achievement or action revealing consummate skill or mastery: a masterstroke of diplomacy. See Synonyms at feat1.
- highest common factor
- high explosive
- highfalutin
- highfaluting
- high fashion
- high fidelity
- high-fidelity
- high finance
- high-five
- highflier
- high-flier
- high-flown
- highflying
- high frequency
- high-fructose corn syrup
- high gear
- High German
- high-grade
- high ground
- highhanded
- highhandedly
- highhandedness
- high hat
- high-hat
- high-hat cymbals