mor·​pho·​phoneme | \ ¦mȯ(r)fō+ \

Definition of morphophoneme

: a class of phonemes that belong to the same morpheme (as the \-s, -z, -ə̇z\ plural suffix of kits, kids, kisses; \f, v\ in knife, knives) also : an arbitrarily selected member of such a class as its representative in grammatical description (as the plural suffix -s, or the f in \nīf\) group together into one morphophoneme the phonemes which replace each other in corresponding parts of the various members of a morpheme — Z. S. Harris

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!

History and Etymology for morphophoneme

morpho- (from morpheme) + phoneme

Keep scrolling for more

Learn More about morphophoneme

Statistics for morphophoneme

Cite this Entry

“Morphophoneme.” Dictionary, Merriam-Webster, Accessed 28 Oct. 2020.

Comments on morphophoneme

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


Test Your Vocabulary

Namesakes Word Quiz

  • a citrus fruit possibly named after a person
  • Which of the following is a fruit named after a Moroccan seaport?
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

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!