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The Collaborative International Dictionary of English v.0.48 (gcide)

Improve \Im*prove"\, v. t. [imp. & p. p. {Improved}; p. pr. &
vb. n. {Improving}.] [Pref. in- in prove, in approve. See
{Approve}, {Prove.}]
1. To make better; to increase the value or good qualities
of; to ameliorate by care or cultivation; as, to improve
land. --Donne.
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I love not to improve the honor of the living by
impairing that of the dead. --Denham.
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2. To use or employ to good purpose; to make productive; to
turn to profitable account; to utilize; as, to improve
one's time; to improve his means. --Shak.
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We shall especially honor God by improving
diligently the talents which God hath committed to
us. --Barrow.
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A hint that I do not remember to have seen opened
and improved. --Addison.
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The court seldom fails to improve the opportunity.
--Blackstone.
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How doth the little busy bee
Improve each shining hour. --I. Watts.
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Those moments were diligently improved. --Gibbon.
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True policy, as well as good faith, in my opinion,
binds us to improve the occasion. --Washington.
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3. To advance or increase by use; to augment or add to; --
said with reference to what is bad. [R.]
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We all have, I fear, . . . not a little improved the
wretched inheritance of our ancestors. --Bp.
Porteus.

Syn: To better; meliorate; ameliorate; advance; heighten;
mend; correct; rectify; amend; reform.
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improved \improved\ adj.
1. advanced to a more desirable or valuable or excellent
state. Opposite of {unimproved}. [Narrower terms: {built,
reinforced}; {cleared, tilled ; {developed}; {grade ;
{graded, graveled ] Also See: {restored}.
[WordNet 1.5]

2. changed for the better; as, her improved behavior.

Syn: amended.
[WordNet 1.5]