When it comes to refusing something, there are many ways to express the sentiment of "saying no to." Some possible synonyms include "decline," "reject," "refuse," "deny," "turn down," "dismiss," "repudiate," "object to," "disagree with," "rebuff," and "withhold consent." Each of these phrases conveys a similar message of refusal, but with slightly different connotations and contexts. For example, "decline" might suggest a polite refusal, while "disagree with" could imply a more confrontational response. In any case, having a range of synonyms for "say no to" can help to clarify one's intentions and communicate more effectively in a variety of situations.