Word.ws English Dictionary

AC45

AC45 noun: a catamaran sailing racing yacht, with a wingsail mainsail, developed for the 2013 America's Cup world tour, the 2013 America's Cup pre-regatta tune-up league, called the America's Cup World Series.

Noun

AC45 (plural AC45s or AC45's)

  1. A catamaran sailing racing yacht, with a wingsail mainsail, developed for the 2013 America's Cup world tour, the 2013 America's Cup pre-regatta tune-up league, called the America's Cup World Series.

Forms of AC45

pluralAC45s
pluralAC45's

Origin of AC45

From America's Cup + 45, because it measures approximately 45 feet on the waterline.

Words formed from AC45

  • AC45f

Questions about AC45

What does AC45 mean?
AC45 means a catamaran sailing racing yacht, with a wingsail mainsail, developed for the 2013 America's Cup world tour, the 2013 America's Cup pre-regatta tune-up league, called the America's Cup World Series.
What part of speech is AC45?
AC45 is a noun.
What is the plural of AC45?
The plural of AC45 is AC45s.

Words near AC45 in the dictionary

  1. AC Plonk
  2. AC Plonks
  3. ac-
  4. ac.
  5. AC/DC
  6. AC45
  7. AC45's
  8. AC45s
  9. AC50
  10. AC50s
  11. AC72

Source and license

Adapted from Wiktionary: AC45 (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: “AC45.” Word.ws, https://word.ws/ac45. Based on Wiktionary, CC BY-SA 4.0.