książka

1. book (collection of sheets of paper bound together to hinge at one edge, containing printed or written material, pictures, etc.)
2. book (long work fit for publication, typically prose, such as a novel or textbook, and typically published as such a bound collection of sheets)
3. diminutive of księga (“ledger”) (book for keeping notes; a record book, a register)
4. oxeye daisy (Leucanthemum vulgare)