Word.ws English Dictionary

64mo

64mo noun: a size of paper or book: 1.87"-2.5" x 2.5"-3.125".

Noun

64mo (usually uncountable, plural 64mos)

  1. (usually, paper) A size of paper or book: 1.87"-2.5" x 2.5"-3.125".
    • 39. Reed, C. A., H. F. Harvey, & R. I. Brasher. WESTERN BIRD GUIDE: Birds of the Rockies & West to the Pacific. 286 pgs with index. Color prints throughout. Red fabricoid, with chipped cardboard slipcase. Oblong 64mo. NY: Doubleday, Doran, 1937. Very good condition, with fair case. $21.50 [115273]2000 April 29, Acorn Books, “FS: 2nd Miscellany of 25 NEW ARRIVALS, Sat., April 29, 2000.”, in rec.arts.books.marketplace (Usenet)

Forms of 64mo

plural64mos

Questions about 64mo

What does 64mo mean?
64mo means a size of paper or book: 1.87"-2.5" x 2.5"-3.125".
What part of speech is 64mo?
64mo is a noun.
What is the plural of 64mo?
The plural of 64mo is 64mos.

Words near 64mo in the dictionary

  1. 62nd
  2. 637
  3. 63rd
  4. 64-pounder
  5. 64-pounders
  6. 64mo
  7. 64mos
  8. 64th
  9. 64th note
  10. 64th notes
  11. 65537-gon

Source and license

Adapted from Wiktionary: 64mo (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: “64mo.” Word.ws, https://word.ws/64mo. Based on Wiktionary, CC BY-SA 4.0.