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decade

Which Means:

A time measure of 10 years.

As In:

Image If I was 15 years old two decades ago, how old am I now?

Heads Up!

The prefix dec- or deca- always means ten.

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meter

Which Means:

The length of almost 40 inches, 6 inches longer than a yard stick.

As In:

Image The Tyrannosaurus rex was several meters long and tall, and weighed 5-7 tons.

Heads Up!

The meter is part of the metric system of measuring things, created in Europe in the 1700s. The US is one of the only countries that doesn't use the metric system, but instead uses the old English Imperial System.

 
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