Septillion

/sepˈtɪljən/

Definition 1 of 1

Pro Tip 1/3

Remember 'septillion' differs in the US and the UK; it has 24 zeros in the US and 42 in the UK.

A US septillion and a UK septillion are not the same number.

Pro Tip 2/3

Use 'septillion' to express something that's huge or exaggerated, often not meant to be taken literally.

I have a septillion things to do today.

Pro Tip 3/3

A septillion is used to describe theoretical or cosmic numbers, beyond regular counting or quantities.

The chances of winning the lottery are one in a septillion.

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