Numbers help us talk about quantity, price, time, and much more. This guide focuses on large numbers so you can describe big amounts clearly.
Vocabulary
Learn these key words for large numbers: thousand, million, billion, and trillion. Each term marks a different scale.
| English Word(s) | English Word(s) | |
|---|---|---|
| thousand | million | |
| billion | trillion |
They donated five thousand dollars to the charity.
Thousands
Numbers in the thousands are shown by saying the number followed by thousand. You can include hundreds and smaller amounts after.
Examples
Expressions
Millions
For numbers in the millions, say the number followed by million. You can add thousands and smaller numbers after if needed.
Examples
Expressions
Billions
Billions come next for even larger amounts. Say the number followed by billion and add millions or smaller numbers as required.
Examples
Expressions
Trillions
Trillions are used for extremely large numbers, often in finance or government. Say the number followed by trillion.
Examples
Expressions
Summary
Remember: use thousand, million, billion, and trillion to name large numbers, and say smaller amounts after to be precise. Practice with real examples.
Last updated: Fri Oct 24, 2025