Synonyms of improvement in English:

improvement


See US English definition of improvement

See UK English definition of improvement

See Spanish definition of mejora

noun

1‘an improvement in the quality of Britain's rivers’

SYNONYMS
advance, development, upgrade, change for the better, refinement, enhancement, furtherance, advancement, forwarding
boost, augmentation, raising
correction, rectification, rectifying, upgrading, amelioration
rally, recovery, upswing, breakthrough
ANTONYMS

deterioration