The verb "be gird" is used to describe the act of encircling or surrounding something or someone with a belt or similar material. However, there are several synonyms that can be used in place of this term. One such synonym is "encircle," which means to surround or enclose on all sides. Another synonym is "surround," which is used to indicate the act of enclosing or encompassing something or someone completely. "Enwrap" is another synonym, which means to wrap or cover something up completely. Other potential synonyms include "girdle," "belt," "encompass," and "enfold." Using synonyms for "be gird" can add variety and nuance to your writing.