There are many words that can be used as synonyms for the word "beaning". Some examples include hitting, striking, smacking, thumping, bashing, pummeling, and clobbering. Each of these words suggests a forceful impact with an object or body part. Other synonyms might include punching, slapping, whacking, socking, or even clubbing. In some contexts, words like "assaulting" or "attacking" might also be appropriate, depending on the severity of the violence involved. Ultimately, the choice of synonym will depend on the specific situation and the intended effect of the writer or speaker.