What is the best definition for the word salient?

The term "salient" is best defined as "important." It refers to something that is particularly noticeable or prominent, drawing attention due to its significance in a given context. When something is described as salient, it suggests that it stands out as a key feature or a main point that deserves consideration. This word is often used in discussions where identifying the most critical aspects of a subject or situation is essential.

Regarding the other choices, "acceptable" indicates a level of approval or sufficiency, "ordinary" refers to something common or unremarkable, and "peripheral" describes something that is at the outer edge or of lesser importance. None of these terms capture the essence of being crucial or significant, which is central to the meaning of "salient."