What is another word for harping upon?
Pronunciation: [hˈɑːpɪŋ əpˌɒn] (IPA) 
The phrase "harping upon" refers to repeatedly emphasizing or dwelling on a particular topic or issue. There are several synonyms for this phrase that can be substituted to add variety and flavor to your language. Some possible synonyms for "harping upon" include fixating on, dwelling upon, obsessing over, beating a dead horse, overemphasizing, and laboring the point. These words can be particularly useful when writing or speaking about a sensitive issue that may require a bit more finesse and discretion. In any case, choosing the right words to convey your message can make all the difference in effectively communicating your thoughts and feelings.
