meaning of improvement
1. The act of improving; advancement or growth; promotion in desirable qualities; progress toward what is better; melioration; as, the improvement of the mind, of land, roads, etc.
2. The act of making profitable use or applicaton of anything, or the state of being profitably employed; a turning to good account; practical application, as of a doctrine, principle, or theory, stated in a discourse.
3. The state of being improved; betterment; advance; also, that which is improved; as, the new edition is an improvement on the old.
4. Increase; growth; progress; advance.
5. Valuable additions or betterments, as buildings, clearings, drains, fences, etc. , on premises.
6. A useful addition to, or modification of, a machine, manufacture, or composition.
7. the act of improving something; "their improvements increased the value of the
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