Definition

The number that comes after fifty-nine and before sixty-one, or the period of life between the ages of sixty and sixty-nine.

Example

She celebrated her sixtieth birthday with a big party.

Conversation

Did you know that my parents are in their sixties now?

Wow, time really flies!

Yeah, they plan to travel more in their sixties.

That sounds like a great idea; they deserve some fun adventures!

Synonyms & Antonyms

Root Explanation

Sixty originates from Old English 'sixtig', which is derived from 'six' (meaning the number six) and '-tig' (a suffix meaning a group of ten). Therefore, sixty literally means six groups of ten.

Memory Tip

Think of the number six and remember that sixty is six groups of ten.

Visually Confused Words