Seventy is the number that comes after sixty-nine and before seventy-one. It's written as 70 in numerals and represents seven groups of ten, or ten groups of seven.

Seventy appears everywhere in daily life. A classroom might have seventy pencils in storage. A recipe could call for heating something to seventy degrees. A book you're reading might have seventy chapters. When you count by tens (10, 20, 30, 40...), seventy comes right after sixty.

In some contexts, seventy carries special meaning. Some countries set seventy as a standard speed limit on certain roads (70 miles per hour or 70 kilometers per hour). The 1970s was a decade of cultural change, from music to technology to fashion. Some people celebrate their seventieth birthday as a major milestone.

The number also appears in measurement and science. Room temperature is often around seventy degrees Fahrenheit. When you see seventy used this way, it's describing a measurement or quantity in ways that help us understand the world around us.