Homonym is a word that has the same spelling and sound as another word, but a different meaning. For example, saw (a cutting tool) and saw (the past tense of see) are homonyms. More examples: The 'book' is very interesting. / I would like to 'book' a flight to Spanish. That is a terrible 'lie'. / You can 'lie' on your back. We are trying to 'train' our dog. / The 'train' will be here soon.
Heteronym is a word that has the same spelling as another word, but different pronunciation and meaning. For example: We live in the 'desert'. / You should never 'desert' a friend at a time of need. I saw a 'tear' in her eye. / She wanted to 'tear' the letter.
Heteronyms: palabras que tienen la misma ortografía de otra Y que se pronuncie diferentemente. Ej: 1) close the door. 2) she was close to me. Close #1 = cerrar, se dice como "cloze". Close #2 = cerca, se dice como "clos". Homonyms: palabras que tienen la misma ortografía y se pronuncie en la misma manera. Ej. 1) What he told you wasn't true, it was a lie. 2) you should lie down. Lie #1 = mentir. Lie #2 = acostarse. Espero que te ayudo