types:
enrich
make better or improve in quality
help
improve; change for the better
upgrade
improve what was old or outdated
emend
make improvements or corrections to
enhance
make better or more attractive
reform
make changes for improvement in order to remove abuse and injustices
reform
improve by alteration or correction of errors or defects and put into a better condition
build
improve the cleansing action of
upgrade
give better travel conditions to
redevelop
change the plans for the use of (land)
follow up
increase the effectiveness or success of by further action
fill
plug with a substance
rectify,
refine
reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities
settle
establish or develop as a residence
school
educate in or as if in a school