Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb sermonize
1 sense of sermonize
Sense 1
sermonize, sermonise, preachify, moralize, moralise -- (speak as if delivering a sermon; express moral judgements; "This man always sermonizes")
=> preach, advocate -- (speak, plead, or argue in favor of; "The doctor advocated a smoking ban in the entire house")