"Room to swing a cat" is a phrase used to describe a very small or cramped space. However, there are many other ways to express the same idea with different words. For instance, you could describe a tiny room as "claustrophobic," "cramped," or "confined." Alternatively, you could say that a space is "tight," "cramped," or "squeezed." Other synonyms for "room to swing a cat" include "limited space," "narrow quarters," "congested area," and "restricted room." Ultimately, there are many ways to convey the sense of a small or enclosed space, and choosing the right synonym can help you describe the situation with precision and nuance.