The phrase "art the fence" can be replaced with a number of synonyms including "mend the boundary," "repair the enclosure," "fix the barrier," "rebuild the palisade," and "restore the partition." These synonyms convey the same basic meaning of repairing or fixing a fence or boundary. Other similar phrases that could be used as synonyms include "build the wall," "restore the barricade," "reconstruct the enclosure," and "reinforce the perimeter." By using these synonyms, writers can add variety to their language and avoid repetitive phrasing, to make their writing more engaging and dynamic.