key (adjective) key: essential, important
Sinonime: accomplishing, administering, at work, conducting, contriving, determining, directing,
driving, executing, finishing, fulfilling, guiding, maintaining,
managing, manipulating,
moving, ordering,
performing, practicing, regulating, revolving,
running,
serving, spinning, supervising, sustaining, transacting, turning,
using, wielding
Antonime: inessential,
insignificant, nonessential,
unimportant