珍しい本を

rare book(s)

→ 珍しい
phrase Rare #35,120
rare book(s) 珍しい means “rare” or “unusual,” 本 means “book,” and を marks the phrase as the object of the verb. The number of books depends on context.
JA: 珍しい本を図書館で見つけました。
EN: I found a rare book at the library.