Definition of twenty-eight 

(Entry 1 of 4)

: being one more than 27 in number twenty-eight years — see Table of Numbers


Definition of twenty-eight (Entry 2 of 4)

: 28 countable persons or things not specified but under consideration and being enumerated twenty-eight are here twenty-eight were found


noun (1)

Definition of twenty-eight (Entry 3 of 4)

1 : eight and 20 : four times seven

2a : 28 units or objects a total of twenty-eight

b : a group or set of 28

3 : the numerable quantity symbolized by the arabic numerals 28

4 : the 28th in a set or series especially : an article of clothing of the 28th size wears a twenty-eight


noun (2)

Definition of twenty-eight (Entry 4 of 4)

: a West Australian yellow-collared parakeet (Platycercus zonarius semitorquatus)

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Learn More about twenty-eight

Share twenty-eight

Statistics for twenty-eight

Look-up Popularity

Comments on twenty-eight

What made you want to look up twenty-eight? Please tell us where you read or heard it (including the quote, if possible).


lying above or upon

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!