- 1number 70
- 2noun the seventies [plural] numbers, years, or temperatures from 70 to 79 Idioms
between the ages of 70 and 79
in your seventiesjump to other results
seventiethjump to other results
NAmE//ˈsɛvnt̮iəθ//ordinal number, noun There are examples of how to use ordinal numbers at the entry for fifth.