The 'My Words' tab is where you can explore the meaning and pronunciation of new words.
You'll see words your teacher has assigned for you to explore by clicking the 'Teacher Words' button.
Click on a word to bring up the pronunciation, definition and example sentences, so that you can to know how to say and use it.
Use My Words to look up any word you want to, explore the word, and then save it for the future if you like.