Word.ws English Dictionary

pack year

pack year is the alternative spelling of pack-year.

Meaning of pack-year

Noun

pack-year (plural pack-years, abbreviation PY or py)

  1. A unit of measure for estimating the number of cigarettes a person has previously smoked, equivalent to average number of packs (each containing 20 cigarettes) smoked per day multiplied by the number of years the person has smoked.

Forms of pack year

pluralpack years

Questions about pack year

What is pack year the alternative spelling of?
Pack year is the alternative spelling of pack-year.

Words near pack year in the dictionary

  1. pack shot
  2. pack shots
  3. pack train
  4. pack trains
  5. pack up
  6. pack year
  7. pack years
  8. pack-away
  9. pack-horse
  10. pack-horses
  11. pack-in

Source and license

Adapted from Wiktionary: pack year (page history and authors); pack-year (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “pack year.” Word.ws, https://word.ws/pack_year. Based on Wiktionary, CC BY-SA 4.0.