Definition of Caffeine

  • (n.) A white, bitter, crystallizable substance, obtained from coffee. It is identical with the alkaloid theine from tea leaves, and with guaranine from guarana.

Synonyms of Caffeine


Antonyms of Caffeine


No Antonyms Found.

Homophones of Caffeine


No Antonyms Found.



Common English words

A list of the most frequently used words in the English languge.

Longest English Words

Longest words in the Oxford Dictionary.