Homonym - Lie (As a Noun and Verb)

(verb) - to be in a horizontal position on a flat surface, like a bed or table.

• Randy enjoys lying on the beach for hours when he is on holiday.
• Poor Tim had to lie in bed for days when he sprained his ankle last week.

(verb) - to be untruthful.

• Ken lies so much that no one believes anything he says.
• Lenny was furious when she found out that her boyfriend had lied to her.

(noun) - something that you say that you know is untrue. 

• I always try to avoid people who like to spread lies and rumours.
• The football star insisted that the news about him having an affair was a lie.

Homonyms - Seal (As a Noun and Verb)

Seal

1. (noun) - a mammal that eats fish and lives on land and in the sea.

• The crowd really enjoyed the seals and dolphins performance at the zoo today.
• We sailed past a group of seals during our tour this morning. 

2. (verb) - to cover or close sth.

• Remember to seal the envelope before posting it.
• I hope the mall's management seals this massive ( = very big) hole before someone falls into it.

3. (verb) - to secure sth 

• James was over the moon (= very happy) when he managed to seal the deal after 2 hours of negotiation with his client.