Pronounce has an O in the middle, but pronunciation does not. The two words are related, but they are spelled differently, and that is why so many people write pronounciation.
First, how do you say them?
pruh-NOWNSS (pronounce)
pruh-NUN-see-AY-shun (pronunciation)
The verb has a NOWNSS sound, like ounce. The noun has a NUN sound, like nun.
The weird part
Look at the two words side by side:
pronounce → pro-nounce
pronunciation → pro-nunciation
The letters OU turn into just U. The two words come from the same family, but the spelling changes.
Many people write pronounciation, because it follows the verb. Even people who speak English as their first language make this mistake. The correct spelling has no O.
Where did the difference come from?
Both words come from the same Latin source: the Latin verb pronuntiare, meaning "to proclaim, announce", and the noun pronuntiatio.
- Pronounce came to English through Old French, in the 1300s. Its spelling looks like a French word, like announce.
- Pronunciation entered English in the early 1400s, also through Old French. In the 1500s, its spelling was changed to match the Latin pronuntiatio more closely, with its nun in the middle. That change took out the O.
So two related Latin words ended up with two different spellings in English.
The reveal
Pronounce and pronunciation come from one Latin verb family. The verb took a French-style spelling with an OU, and the noun kept a spelling closer to the Latin, with a U and no O.
🔤 A handy pattern
Say the noun slowly, with a clear NUN in the middle:
- pro-NUN-ci-a-tion
If you can hear nun, you cannot write an O there.
⚠️ Common Mistakes
Do not add an O.
❌ pronounciation
✅ pronunciation
Do not drop the O in the verb.
❌ I can't pronunce this word.
✅ I can't pronounce this word.
Do not mix up the noun and the verb.
❌ Your pronounce is perfect.
✅ Your pronunciation is perfect.
💬 In a Conversation
Leo: How do you pronounce this word?
Mia: Your pronunciation is almost perfect.
Leo: Why is there no O in pronunciation?
Mia: The O left when the noun was born.
⏳ The OddLingo Timeline
Latin "pronuntiare" and "pronuntiatio" → Old French "prononcier" and "prononciacion" → "pronounce" in English in the 1300s → "pronunciacioun" in the early 1400s → respelled to match the Latin in the 1500s → "pronunciation" today
🥡 The OddLingo Takeaway
The verb pronounce has the OU. The noun pronunciation has just U.
To remember it, say: "You pronounce the word, and then you check your pronunciation, which has no O."