Yes, particular is a Scrabble word!

Adjective

1. Unique or specific to a person or thing or category

2. Separate and distinct from others of the same group or category

3. Surpassing what is common or usual or expected

4. First and most important

5. Exacting especially about details

6. Providing specific details or circumstances

Noun

1. A fact about some part (as opposed to general)

2. A small part that can be considered separately from the whole

3. (logic) a proposition that asserts something about some (but not all) members of a class