Amelioration
Amelioration may refer to:

Amelioration patterns, a software design pattern
Amelioration Act 1798, a statute in the Leeward Islands regarding the treatment of slaves
Rapid climatic amelioration, in geology, a major change from glacial to interglacial stages, specifically regarding transitions in the oxygen isotope ratio cycle
Land improvement, alternatively called amelioration)
The process by which the pejorative associations of a word are swept away; see Pejorative#Pejoration and melioration