improvement
noun
[ ɪmˈpruːvm(ə)nt ]
• an example of improving or being improved.
• "an improvement in East–West relations"
Similar:
advance,
development,
upgrade,
change for the better,
refinement,
enhancement,
furtherance,
advancement,
forwarding,
boost,
augmentation,
raising,
correction,
rectification,
rectifying,
upgrading,
amelioration,
rally,
recovery,
upswing,
breakthrough,
Origin:
late Middle English emprowement (in the sense ‘profitable management or use; profit’), from Anglo-Norman French, from emprower (see improve).