[UK and ANZ] usually -ise [verb] [I] often disapprovingTo moralize is to express judgments on right and wrong.A good teacher manages to educate without moralizing.He has an infuriating habit of moralizing on/about subjects he knows nothing about.
MORALIZE
Meaning of MORALIZE in English
Cambridge English vocab. Кембриджский английский словарь. 2012