Do you really want to send Webster 1913 a message saying you like their work?
Pro*fi"cience (?), Pro*fi"cien*cy (?), n.
The quality of state of being proficient; advance in the acquisition of any art, science, or knowledge; progression in knowledge; improvement; adeptness; as, to acquire proficiency in music.
© Webster 1913.
Log in or register to write something here or to contact authors.