"upgrade" - key terms from Wikipedia

adopted to upgrade
armor upgrade
avionics and software upgrade
avionics upgrade	program
combat upgrade
domestic product to upgrade	housing
engine upgrade
helmet upgrade
iigs upgrade
new threat upgrade
nova upgrade
option to upgrade
proposed upgrade
radar upgrade
ram upgrade
received an upgrade
rose upgrade
upgrade
upgrade	editions
upgrade	gives
upgrade	kit
upgrade	of older ja
upgrade	package
upgrade	paths
upgrade	points for complimentary flight
upgrade	program
upgrade	shs
upgrade	silo
upgrade	silo and cdb completed
upgrade	u
windows anytime upgrade