- Psalms, Book of Psalms - an Old Testament book consisting of a collection of 150 Psalms
--1 is a kind of book
--1 is a part of Hagiographa, Ketubim, Writings; Old Testament - Psalter, Book of Psalms - a collection of Psalms for liturgical use
--2 is a kind of prayer book, prayerbook
--2 is a part of Book of Common Prayer