Also, pass on or over. Die, as in He passed away last week, or After Grandma passes on we'll sell the land, or I hear he's about to pass over. All these terms are euphemisms for dying, although the verb pass alone as well as pass away have been used in the sense of "pass out of existence, die" since the 1300s. The two variantsadding on [c. 1800] and over [c. 1900]allude to moving to some other-worldly realm.
Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.