particular

The word particular centers on the idea of one specific thing or on careful attention to detail. Very often, it means "specific" or "special to this case" rather than general. If you say, "I'm looking for a particular book," you mean one certain book, not just any book. In the same way, "Do you have a particular preference?" asks whether there is one exact choice you want.

It also often describes a person who is very careful, exact, or selective in their tastes and habits. Someone who is particular might want their tea made a certain way, care a lot about neatness, or notice small differences that other people ignore. In this sense, the word can be positive. It may suggest care, precision, and high standards.

At the same time, it can carry a mildly critical tone. If you say, "She's very particular about her food," you might mean she has refined taste, but you might also mean she is hard to satisfy or complains when things are not exactly right. The tone depends on context.

The word also appears in common expressions such as "in particular," which means especially or specifically. So whether you're talking about one exact thing, someone's careful preferences, or something that deserves special mention, particular points to specificity, detail, and selection.