mas·ter·piece 
(măstər-pēs′)
(măstər-pēs′)n.
1. An outstanding work of art or craft.
2. The greatest work, as of an artist. Also called masterwork.
3. Something superlative of its kind: a masterpiece of political ingenuity.
[Probably translation of Dutch meesterstuk or German Meisterstück : Dutch meester and German Meister, master + Dutch stuk and German Stück, piece of work.]
- single-hearted
- single-heartedly
- single-heartedness
- singlehood
- single-issue
- single knot
- single-lens reflex
- single-minded
- single-mindedly
- single-mindedness
- singleness
- single out
- single-payer
- single-phase
- singles bar
- single-sex
- single-space
- singlestick
- singlesticker
- singlet
- single tax
- singleton
- single-track
- singletree
- singlewide