Useful; good at need; fit; able.
Quick and effective; deft; skilful.
In good order; trim; tidy; dainty; clean.
To use; employ.
To refuse; deny; disclaim.
To exert oneself.
To go over; recite; repeat.
Use; profit; foredeal; advantage.
Use; end; purpose.
Capable of or characterized by a high or excellent level of performance or efficiency.
Characterized by a level of performance or efficiency that is adequate for or exceeds the expectations of end users.
Of or relating to performance.