What is the difference in the phonetic symbols of the four English words her, teacher, doctor, and worker?

her has a different er, a long vowel sound, and the other three short vowels

her, teacher, doctor, worker

her, teacher, doctor, worker

Key Vocabulary Interpretation

teacher Teacher, instructor, teacher, sir; coaching machine

doctor Dr.; doctor, doctor; doctor, theologian; medical equipment; medical, practicing medicine; repair, assembly; fake

Doctor. doctor, doctor; theologian; medical equipment; medical treatment, practice of medicine; repair, assembly; fake; adulteration; modification, modification

worker laborer; laborer, employee; worker, worker bee, worker ant

These words are used in the following ways.