Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
melioration is a noun meaning "the act of relieving ills and changing for the better". It carries 3 recorded senses.
the act of relieving ills and changing for the better
a condition superior to an earlier condition
“the new school represents a great improvement”
the linguistic process in which over a period of time a word grows more positive in connotation or more elevated in meaning
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for melioration come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.