noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Alternative spelling of caffeine. alt-of, alternative, uncountable, usually
2. 2
   a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects wordnet

Synonyms

All synonyms

caffeinecaffeine

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.