The phrase "with proviso" means that something is being stated or agreed upon, but with conditions attached. Synonyms for this term include "on the condition that," "provided that," "subject to," "if," and "upon the understanding that." Other alternatives include "with a caveat," "with a reservation," and "with a limitation," which all convey the idea that there is a caveat or limitation to what is being said or agreed upon. It is important in communication to use such qualifiers to ensure that everyone involved understands the ramifications of what is being said, and to avoid misunderstandings.