to make a judgement about the nature or quality of somebody/something assess somebody/something It's difficult to assess the effects of these changes. to assess a patient’s needs Interviews allow you to assess the suitability of candidates. assess somebody/something as something The young men were assessed as either safe or unsafe drivers. I'd assess your chances as low. assess whether, how, etc… The committee assesses whether a building is worth preserving. We are trying to assess how well the system works.