number
eighty
Eight times ten.
The school bus carries eighty students on its morning route.
Etymology
The ending continues an old word for a group of ten. Eighty therefore expresses eight such groups, making eighty rather than eighteen.
More examples
- This jacket costs eighty dollars.
- My grandfather turns eighty today.
- Eighty percent of the class passed the test.
Forms
eightieth adjective — Occupying position eighty in a sequence.