Which term means 'to sense or understand something intuitively'?

The term that means 'to sense or understand something intuitively' is "discern." This word implies a keen perception or insight that enables someone to notice or distinguish something that may not be immediately obvious. It suggests a level of intuition and awareness about nuances or subtleties in a situation, allowing a person to grasp deeper meanings or truths.

In contrast, "infer" refers to the process of drawing a conclusion based on evidence or reasoning rather than direct observation. "Comprehend" means to grasp or understand something fully, typically requiring a more analytical approach rather than an intuitive one. "Apprehend" can mean to understand, but often it relates more to the idea of capturing or arresting something, whether in terms of insight or physically catching it. Thus, "discern" is the most fitting choice for conveying the notion of intuitive understanding.