How to pronounce “eighteenth”
Eighteenth is pronounced /eɪˈtiːnθ/. It has 2 syllables, and the beat falls on the second one — tiːnθ. Below: the syllable split, native audio in both accents, the mistake people actually make with this word, and every individual sound in it explained.
Syllables and stress
Split it into 2 beats. The highlighted syllable is the strong one: say it louder, longer and a touch higher in pitch, and let the others fall away. English is a stress-timed language, so getting tiːnθ in the right place matters more to a listener than getting every vowel perfect.
Stress pattern oO — capital letters mark the stressed beats.
The common mispronunciation of “eighteenth”
✗ Often said: /ˈeaɪtiːnθ/ — the spelling, read straight off the page.
✓ Actually: /eɪˈtiːnθ/
Why the two come apart: the silent “gh” is not pronounced, even though the spelling begs you to say it; also, the stress lands on the second syllable (“tiːnθ”), not on the first one — putting the beat at the front is the mistake almost everyone makes; also, at least one vowel does not say what its spelling suggests — English vowel letters are not reliable here.
This is why reading English aloud from spelling alone goes wrong so often: the letters of “eighteenth” are not a reliable map of its sounds. The IPA is — each symbol stands for exactly one sound, every time.
“eighteenth” sound by sound
“eighteenth” is built out of 5 sounds. Say each one on its own first, slowly, then run them together at speed. Every sound links to a full guide with mouth position, the mistake learners make with it, and other words that use it.
-
eɪStart at the /e/ position and glide upward and forward toward /ɪ/ — the jaw closes as you say it.
-
tTouch the tongue tip to the bumpy ridge just behind the upper teeth, block the air, then release it with a puff.
-
iːSpread the lips into a smile, push the front of the tongue high and forward, and hold the sound tense and long.
-
nTouch the tongue tip to the ridge behind the upper teeth, lower the soft palate, and voice the air out through the nose.
-
θLet the tongue tip touch (or just peek between) the upper front teeth and blow air over it with no voicing.
Silent letters in “eighteenth”
Letters you write but never say — this is the single biggest reason the word trips people up:
- ghThe letter “gh”Silent “gh” — write it, but do not let it reach your mouth.
Words that rhyme with “eighteenth”
Same ending sound from the stressed vowel on — a good way to hear whether you have the vowel right:
Questions people ask about “eighteenth”
- How do you pronounce “eighteenth”?
- “eighteenth” is pronounced /eɪˈtiːnθ/, with the stress on the second syllable (tiːnθ). Press the US or UK button above to hear it spoken.
- How many syllables are in “eighteenth”?
- “eighteenth” has 2 syllables: eɪ · tiːnθ. The stress pattern is oO.
- What is the common mispronunciation of “eighteenth”?
- People read it off the spelling as /ˈeaɪtiːnθ/, but it is actually /eɪˈtiːnθ/, because the silent “gh” is not pronounced, even though the spelling begs you to say it.
- Does “eighteenth” have any silent letters?
- Yes — silent “gh”.
Stop looking words up one at a time
You just looked up one word. PHONO puts the IPA above every word of whatever you are reading — in your browser, in a PDF, in any app — the moment you select it. An offline pronunciation dictionary, US and UK audio, one hotkey.