improvement
Definitions
noun
The act of improving; advancement or growth; a bettering
November 9, 1662, Robert South, Of the Creation of Man in the Image of God I look upon your city as […] the best place of improvement.
Exercise is the chief source of improvement in all our faculties.
The act of making profitable use or application of anything, or the state of being profitably employed; practical application, for example of a doctrine, principle, or theory, stated in a discourse.
good improvement of his reason.
I shall make some improvement of this doctrine.
The state of being improved; betterment; advance
Something which is improved
the new edition is an improvement on the old.
The parts of Sinon, Camilla, and some few others, are improvements on the Greek poet.
Increase; growth; progress; advance.
Those vices which more particularly receive improvement by prosperity.