horde
(a large crowd of people)
- Hordes of tourists come to this island every summer.
- A horde of reporters were waiting at the airport for his arrival.
hoard
(a secret stock or store of money or valued objects)
- They dug up a hoard of gold coins.
- He always kept a huge hoard of canned food in the basement.
- We decided to hoard food and supplies. [as a verb]