S: (v) enrich (make better or improve in quality) "The experience enriched her understanding"; "enriched foods"
S: (v) build up, develop (change the use of and make available or usable) "develop land"; "The country developed its natural resources"; "The remote areas of the country were gradually built up"
S: (v) turn around (improve dramatically) "The new strategy turned around sales"; "The tutor turned around my son's performance in math"
S: (v) help (improve; change for the better) "New slipcovers will help the old living room furniture"
S: (v) upgrade (to improve what was old or outdated) "I've upgraded my computer so I can run better software"; "The company upgraded their personnel"
S: (v) condition (put into a better state) "he conditions old cars"
S: (v) emend (make improvements or corrections to) "the text was emended in the second edition"
S: (v) iron out, straighten out, put right (settle or put right) "we need to iron out our disagreements"
S: (v) enhance (make better or more attractive) "This sauce will enhance the flavor of the meat"
S: (v) purify, sublimate, make pure, distill (remove impurities from, increase the concentration of, and separate through the process of distillation) "purify the water"
S: (v) fructify (make productive or fruitful) "The earth that he fructified"
S: (v) raise, lift (invigorate or heighten) "lift my spirits"; "lift his ego"
S: (v) advance (develop further) "We are advancing technology every day"
S: (v) change, alter, modify (cause to change; make different; cause a transformation) "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"
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"