im·prove (m-prv)
v. im·proved, im·prov·ing, im·proves
v.tr.
1. To raise to a more desirable or more excellent quality or condition; make better.
2. To increase the productivity or value of (land or property).
3. To put to good use; use profitably.
v.intr.
1. To become better.
2. To make beneficial additions or changes: improve on the translation.
[Middle English improwen, to enclose land for cultivation, from Anglo-Norman emprouwer, to turn to profit : Old French en-, causative pref. (from Latin in-; see in-2) + Old French prou, profit (from Late Latin prde, advantageous; see proud).]
im·prova·ble adj.
im·prova·bly adv.
Synonyms: improve, better1, help, ameliorate
These verbs mean to advance to a more desirable, valuable, or excellent state. Improve and better, the most general terms, are often interchangeable: You can improve (or better) your mind through study; I got a haircut to improve (or better) my appearance.
Help usually implies limited relief or change: Gargling helps a sore throat.
To ameliorate is to improve circumstances that demand change: Volunteers were able to ameliorate conditions in the refugee camp.