Bad vs bed: how to say the American /æ/ and /ɛ/ vowels

Published November 3, 2026

“Bad” and “bed” can sound identical if your first language has only one vowel in this part of the mouth. Mixing them up can change your meaning: “man” becomes “men”, and “pan” becomes “pen”. The key difference is how far your jaw opens.

The /æ/ in “bad”

This is the vowel in bad, cat, and man. Open your jaw wide and keep your tongue low and forward in your mouth. In American English it’s often quite long, especially in words like bad that end in a voiced sound.

The /ɛ/ in “bed”

This is the vowel in bed, get, and men. Your jaw is only partly open, and your tongue sits higher than it does for /æ/. It’s usually shorter and takes less effort.

Word pairs to practice

Watch out for spelling

The letter “a” usually signals /æ/ in short words like bad, and “e” usually signals /ɛ/. But /ɛ/ has other common spellings, like “ea” in head and bread, and “ue” in guess. The words said and any also use /ɛ/.

How to practice

1. Say “bad, bed, bad, bed” in front of a mirror. Your jaw should drop further for “bad”.
2. Record yourself, then compare your recording with a native speaker’s audio.
3. Try the pairs in a sentence: “Can you pass the pan?” and “Can you pass the pen?”
4. Practice a little every day. Short, regular sessions help your ear adjust.