mastery
nounPossession of consummate skill.
nounThe status of master or ruler; control.
nounFull command of a subject of study.
nounThe state of being a master; power of command or control; rule; dominion; sway.
nounAscendancy in war or in competition; the upper hand; superiority; preƫminence.
nounExpert knowledge or skill; power of using or exercising; dexterity: as, the mastery of an art or science.
nounMasterly attainment; the gaining of mastership.
nounA contest for superiority.
nounA masterly operation or act; a triumph of skill.
nounThe finding of the magisterium or philosopher’s stone; also, the stone itself.