Harvester (noun)

1. A person or machine that harvests crops.
2. A large agricultural machine used for harvesting crops, especially grain, from a field.
3. A person or machine that gathers crops for food or animal feed.

Origin:

Late middle english haruestere from old english hærfester (recorded in hærfestnan as "harvesting"), from hærfest harvest + -ester (suffix forming agents" nouns). .

Examples:

1. The farmer bought a new harvester to replace his old one.
2. The harvester is a large machine used to collect the crops.
3. In the field, the harvester was busy collecting the wheat.
4. Harvesters need to work quickly to gather all the crops before they spoil.
5. The machine used for harvesting crops is called a harvester.