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How to spell caffeine

Caffeine is spelled C-A-F-F-E-I-N-E. The part people get wrong: double F.

hear itcaf·feine/kæ'fin/nounHidden vowels

What it means: A stimulant found in coffee and tea.

In a sentence: Caffeine can make you feel more awake and energetic.

The part people get wrong

Watch for double f, and the order of ei.

Same family: coffee, tea, energy-drink, decaffeinated, stimulant. If you can spell one, the shared part carries to the others.

Where it comes from: The word “caffeine” comes from the German word “Kaffein,” formed from “Kaffee” meaning “coffee,” because the substance was first isolated from coffee. Its chemical name, used in older texts, was “caffein” without the final e.

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