When it comes to ensuring that something is done correctly or thoroughly, there are many synonyms for "making sure." Some alternatives include "verifying," "checking," "confirming," "ensuring," "cross-checking," "ascertaining," or "guaranteeing." Each of these words implies a level of diligence and attention to detail. It is important to choose the appropriate synonym depending on the context in which it will be used. For instance, "verifying" may be more appropriate for a formal document, while "checking" may be more conversational. Overall, using these synonyms can convey a sense of responsibility and thoroughness when completing a task or meeting a goal.