- amelioration, melioration, betterment - the act of relieving ills and changing for the better
--1 is a kind of improvement
Derived forms: verb meliorate1, verb meliorate2 - improvement, melioration - a condition superior to an earlier condition; "the new school represents a great improvement"
--2 is a kind of condition, status
--2 has particulars:betterment; development; reformation; renovation, restoration, refurbishment Derived forms: verb meliorate1, verb meliorate2 - melioration - the linguistic process in which over a period of time a word grows more positive in connotation or more elevated in meaning
--3 is a kind of drift
Derived form: verb meliorate2