The ER sound is a short vowel. The phonetic symbol is /ɝ/. Usually, it is spelled with an ER like term, teller, and her.
It can also be spelled:
UR: blur
OR: odor
IR: sir
EAR: learn
ERE: were
How to say the short ER sound
Jun 18, 2014 | How to pronounce English words correctly, Pronunciation Training, Spelling rules and pronunciation