Skip to content

Silent letters in English

Silent letters are letters that are written but not pronounced, such as the k in knee, the b in thumb and the t in castle. They are usually left over from older pronunciations that changed while the spelling stayed put. Most follow patterns worth learning: kn and gn at the start of a word drop the first letter, mb and bt at the end drop the b, and st in listen, castle and whistle drops the t.

Why they exist

Most silent letters were once pronounced. The k in was still said aloud in Middle English and was only lost around the seventeenth century, and the gh in was a throaty sound English has since dropped. The pronunciation moved on; the spelling was frozen by printing. A few, such as the b in , were never pronounced at all — scholars inserted them to show a Latin origin.

kn- at the start — the k is silent

wr- at the start — the w is silent

-mb at the end — the b is silent

-bt together — the b is silent

st- in the middle — the t is silent

gn- at either end — the g is silent

h- after w or at the start — the h is silent

ps- at the start — the p is silent

-pt after a vowel — the p is silent

The ones with no rule

Some words simply have to be learned. These are the ones that most often catch people out in speech, including confident speakers.

Silent in one accent, not another

The r in is silent in most British accents and pronounced in American English. The t in is silent for many speakers and pronounced by others, both accepted. Use Compare to hear these side by side rather than trusting one dictionary entry.

Practise this

Words where K is written but never spoken. Hear all ten silent-K words said aloud in your accent.
15
Show the 15 words

Climb, thumb, debt, doubt: words with a B you never say. Listen and copy the correct pronunciation.
15
Show the 15 words

Walk, calm, half, should: the L is written but not spoken. Practise these common silent-L words.
15
Show the 15 words

Castle, listen, often, ballet: words where the T stays silent. Hear each one spoken clearly.
15
Show the 15 words

Hour, honest, ghost, rhythm: an H on the page that never reaches your mouth. Practise all fifteen.
15
Show the 15 words

Write, wrong, sword, answer: the W is invisible in speech. Hear these silent-W words pronounced.
15
Show the 15 words

Quick pronunciation tips

Read slowly first. Pronounce each syllable deliberately before trying to blend them at full speed. Rushing hides the vowel and consonant shapes your ear needs to learn.

Record yourself. Most phones have a voice memo app — record a word, then compare it to the playback here. Hearing the gap between your version and the model accent makes targeted practice far easier.

Focus on one accent. Jumping between American, British and Australian in the same session creates confusion. Pick the accent you encounter most and stick with it until the patterns feel natural.

Keep going

Every word above is a button. Set the accent and voice you want on the main screen, then come back — the guides use whatever you chose. To hear two accents against each other, use Compare; to test whether you can actually hear a contrast, use the listening quiz.

Sources and review

https://en.wikipedia.org/wiki/Silent_letter
https://en.wikipedia.org/wiki/English_orthography
https://en.wiktionary.org/wiki/knight
https://en.wiktionary.org/wiki/psychology
How this guide was checked
Written against the references above and last checked against them on 2026-09-15. Phonetic symbols follow the International Phonetic Association chart; where two references disagree on a transcription, the dictionary entry is preferred. Spot an error? The editorial policy explains how corrections are handled.

Last reviewed 2026-09-15 · Learn Pronounce

Look up any word's IPA