Which of the following words means "capable of being touched or felt"?

The term "tangible" refers to something that can be perceived by touch or is capable of being physically felt. It implies a sense of physical presence, often used in contexts to describe objects or concepts that are concrete and measurable. In a broader spectrum, it can also denote things that are clear and definite in nature, making it applicable in various discussions, including finance, emotions, and experiences.

In contrast, "nocturnal" pertains to activities or organisms that are active during the night, which does not relate to the concept of touch or physicality. "Quiescent" describes a state of inactivity or dormancy, suggesting a lack of movement or energy rather than a tactile quality. "Trenchant" is often used to describe something that is sharply perceptive or insightful, typically in a figurative sense, and also does not pertain to the physical ability to be felt. The distinct definition of "tangible" makes it the clear choice in this context.