Which term refers to the ability to perceive and grasp the meaning of an idea or message?

The term that refers to the ability to perceive and grasp the meaning of an idea or message is "understand." This term encompasses the cognitive process of making sense of information, concepts, or experiences, allowing an individual to connect and integrate new knowledge with existing understanding.

The other options, while related to understanding, focus on specific aspects of comprehension. For instance, "visualize" emphasizes the ability to form mental images or representations of concepts rather than directly grasping their meaning. "Interpret" leans towards explaining or giving meaning to something based on context or perspective, which may not always involve a complete grasp of the underlying idea. Meanwhile, "comprehend" closely resembles understanding but can imply a slightly more technical or detailed grasp, which may not capture the broader cognitive ability implied by "understand." Thus, "understand" is the most fitting choice for indicating the overall ability to perceive and grasp meanings accurately.