There are several synonyms for the phrase "said yes to". Some of the options include agreed to, accepted, nodded in approval, acquiesced, gave the go-ahead, endorsed, authorized, greenlit, permitted, approved, complied with, or assented to. Depending on the context, these synonyms can add variety and depth to your writing and prevent repetitive use of the same phrase. For example, instead of repeatedly stating that someone "said yes to" a request or proposal, you can mix it up by choosing a different synonym that best fits the situation. This can make your writing more engaging and interesting to read.