I'll have a decaf, please.

I prefer decafs over regular coffee.

I prefer decaffeinated coffee in the evening.

I need to decaffeinate my coffee.

Coffee decaffeinates naturally during the roasting process.

I am decaffeinating my coffee.

I prefer decaff coffee in the morning.

I prefer decaffs over regular coffee.

Decaffeination is the process of removing caffeine from coffee beans.

I sprayed decafentin on my plants to protect them from fungal diseases.