• To make sure how to pronounce each word you can go to Cambridge Dictionary. You should use this site as well. There, you can listen to how the word is used in the context.

https://youglish.com/

• Please, make your own example (or examples) for each word as detailed as possible. It's really vital for a better memorizing.
• At the end you can add your own words if you like.

• Persevere

/ˌpɝː.səˈvɪr/ ; verb

— to continue making an effort to do or achieve something, even when this is difficult or takes a long time

Examples:

1. We will persevere in this struggle for peace, no matter how long it takes.

• Look up

/lʊk/ ; phrasal verb

— to become better

Examples:

1. Our financial situation is looking up at last.

• Show off

/ʃoʊ/ ; phrasal verb