coffee
n. C / U A1 Beginner Oxford US //ˈkɑfi// UK //kˈɒfi// cof·fee
n. a popular dark drink made from roasted beans. You can drink it hot or cold, and it often helps you feel more awake.
n. a beverage brewed from the roasted and ground seeds of the tropical Coffea plant. Both uncountable for the liquid and countable for individual servings or botanical varieties.
I drink a cup of hot coffee every morning.
The office kitchen provides free coffee to help employees stay alert during long meetings.
While some connoisseurs prefer the bright acidity of light-roasted beans, others seek the smoky, full-bodied profile characteristic of a dark roast coffee.
Usage
Uncountable when referring to the substance in general; countable when ordering specific servings ('two coffees, please').