W: (n) improvement [Related to: improve] (the act of improving something) "their improvements increased the value of the property"
W: (n) improver [Related to: improve] (someone devoted to the promotion of human welfare and to social reforms)
W: (n) improver [Related to: improve] (a component that is added to something to improve it) "the addition of a bathroom was a major improvement"; "the addition of cinnamon improved the flavor"
W: (adj) amendable [Related to: amend] (capable of being corrected by additions) "an amendable flaw"
S: (v) disentangle, unsnarl, straighten out (extricate from entanglement) "Can you disentangle the cord?"
S: (v) reform, straighten out, see the light (change for the better) "The lazy student promised to reform"; "the habitual cheater finally saw the light"