numeral / noun
eight
AYT/ˈeɪt/
The number that is one greater than seven.
Eight wooden beads form two equal rows of four.

Etymology
Old English eahta already named the same number. The selected meaning preserves that numerical value directly: one more than seven, or twice four.
In context
one parts of product for seven equal parts of water so if you add seven plus one that's eight total parts
More examples
- Four plus four equals eight.
- The store opens at eight every morning.
- She writes her eights with two neat loops.
Forms
eight · eights
eighth adjective — Coming immediately after seventh in a sequence.