Synonyms of betterment

2 Syllables
progress
3 Syllables
mastery, promotions, benefit, progression, promotion, retrievals, upgrading, meliorism, preferment, progressions, progresses, retrieval, pre-ferment, amendment
4 Syllables
improvement, amenity, meliorations, repossessions, anabasis, advancement, melioration, repossession, prosperity
5 Syllables
edification, amelioration, recuperation, re-generation, rectifications, reinvigoration