[Elamur Dictionary](https://md.dictionary.elamur.ai/free/en/) · [this page in HTML](https://dictionary.elamur.ai/free/en/english/caffeine/)

[dictionaries](https://md.dictionary.elamur.ai/free/en/) / [English](https://md.dictionary.elamur.ai/free/en/english/) / [C](https://md.dictionary.elamur.ai/free/en/english/c/) / caffeine

# caffeine

noun (caffeine)

«caffeine» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

Caffeine is a natural chemical in coffee, tea, cola, energy drinks and chocolate that makes people feel more awake and alert. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/caffeine/#m1)

### In the lessons

In health and science lessons, children learn that caffeine is a stimulant: it can make the heart beat faster and make it hard to sleep, and too much is bad for children. Energy drinks have a lot of caffeine and are not for children; in some countries shops will not sell them to children. Food labels show how much caffeine is in a drink. Phrases: «full of caffeine», «caffeine-free».

### Examples

- Coffee has caffeine in it. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/caffeine/#x1)
- Caffeine can stop you sleeping. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/caffeine/#x2)
- Energy drinks are not for children because of the caffeine. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/caffeine/#x3)
- Mum drinks caffeine-free tea at night. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/caffeine/#x4)
- Cola contains some caffeine. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/caffeine/#x5)
- Dark chocolate has a little caffeine. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/caffeine/#x6)
- Too much caffeine can make your heart race. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/caffeine/#x7)
- Check the label to see how much caffeine is in it. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/caffeine/#x8)

### Note

Uncountable. Spelling trap: caffeine breaks the «i before e» rule (it is «ei»). Pronounced «KAF-een». «Decaffeinated» or «decaf» means most of the caffeine has been taken out.

## On Mova

- [Trees and pragmatics of «caffeine» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/caffeine/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«caffeine» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/caffeine.html) on Mova free.