When it comes to synonyms for the phrase "pull back", there are a variety of phrases and words that can be used. Some common options include "retreat", "withdraw", "recede", "recoil", "shrink", "back away", "draw back", and "retract". Each of these phrases carries a slightly different connotation, depending on the context in which they are used. For instance, "retreat" implies a more strategic decision to back away, whereas "withdraw" has more of a sense of conceding ground. Ultimately, the best synonym for "pull back" will depend on the specific situation and desired tone of voice.