"Holds bay" is a phrase that suggests something or someone is being kept back, restrained, or prevented from moving forward. There are many synonyms that can be used to convey a similar meaning, depending on the context. Some of the most common synonyms for "holds bay" include "restrains," "holds back," "constrains," "restrains," "suppresses," "controls," "stifles," "hampers," "retards," and "inhibits." Other similar terms could include "arrests," "detains," or "prevents." Whatever the situation may be, using synonyms to "holds bay" can help to provide a more accurate description of the situation and enhance your writing or speaking.