Undergo' is a verb that means to go through or to EXPERIENCE something. It can be used in many different contexts, such as physical, mental, or emotional. For example, one might 'undergo' a medical procedure, a change in lifestyle, or a difficult situation. The crossword solutions for the term 'undergo' include 'ENCOUNTER, ' which means to come across or to meet with; 'TOLERATE, ' which means to accept or to put up with; 'ABIDE, ' which means to accept or to comply with; 'ALLOW, ' which means to permit or to give permission; 'BEAR, ' which means to carry or to support; 'SUFFER, ' which means to EXPERIENCE pain or distress; 'EXPERIENCE, ' which means to HAVE knowledge or understanding of; 'HAVE, ' which means to possess or to own; 'TASTE, ' which means to sample or to try; and 'ENDURE, ' which means to withstand or to survive.