Definition

The number that comes after seventy-nine and before eighty-one, representing the quantity of eight tens.

Example

She celebrated her eightieth birthday with a big party.

Conversation

Did you know my grandparents are in their eightys now?

Wow, that's impressive! They must have so many stories to tell.

Yeah, they often talk about the changes they've seen since the eighty decade.

I can only imagine how different things must have been back then!

Synonyms & Antonyms

Root Explanation

Eighty originates from Old English 'eahta' (meaning eight) combined with the suffix '-ty' (meaning a group of ten). The word 'eighty' refers to the number that is eight groups of ten.

Memory Tip

Think of 'eight' and remember that 'eighty' means eight groups of ten.

Visually Confused Words