Definition

A substance found in coffee, tea, and some other plants that acts as a stimulant to the central nervous system, helping to increase alertness and reduce fatigue.

Example

Many people drink coffee in the morning to get a boost of caffein.

Conversation

I really need a boost this morning, I didn't sleep well last night.

Have you thought about drinking some caffein to wake you up?

Good idea! I could really use the energy right now.

Yeah, a nice cup of coffee should help you feel better.

Synonyms & Antonyms

Root Explanation

Caffeine originates from the French word 'café' (meaning coffee) combined with the suffix '-ine' (used to denote chemical substances). The word 'caffeine' refers to the chemical compound found in coffee and tea that acts as a stimulant.

Memory Tip

Think of 'café' as the source of caffeine, which is the stimulant found in coffee.

Visually Confused Words