To submit or yield to another's wish or opinion is to __________.

The term that best captures the idea of submitting or yielding to another's wish or opinion is "defer." When you defer, you are essentially putting aside your own judgment or decision in favor of someone else's perspective or request. This act suggests a level of respect or acknowledgement of the other person's authority or viewpoint.

In contexts where decision-making is involved, deferring indicates a willingness to allow someone else to have the final say or to take the lead. It can be seen in various situations, such as when one professional respects the expertise of a colleague and chooses to follow their guidance.

The other terms do not align with the notion of submitting to someone else's wishes. "Resist" implies opposing or standing firm against something, while "concede" suggests admitting defeat in an argument or giving up a point, often after some level of resistance. "Refuse" means to reject or decline a request outright, which is the opposite of yielding or submitting. Thus, "defer" is the most accurate choice for this context.