name: A surname (very rare: popularity rank in the U.S.: #68892)
noun: Initialism of pack-year. [(medicine, smoking) A unit for measuring the number of cigarettes a person has smoked previously; it is calculated by multiplying the average number of packs of cigarettes the person smokes per day by the number of years the person has smoked.]
noun: Initialism of pinyin.
noun: Initialism of person-year. [Synonym of man-year]
noun: Initialism of Proto-Yukaghir. [(linguistics) The theoretical protolanguage which is the common ancestor of the Yukaghir languages.]
