Theory:

Homonyms are two words that are spelt the same and sound the same but have different meanings. The term "homonym" comes from the prefix "homo-," which means the same, and the suffix "-nym," which means name. Therefore, a homonym is a word that has the same name as another word, meaning that the two words look and sound exactly alike.
Example:
1. Express - something done fast / to show your thoughts by using words.
2. Fair - equitable / beautiful.
3. Jag - a sharp, jutted object / a crying spree.
4. Kind - type / caring.
5. Lie - to recline / to tell a falsehood.