Meaning of “cotton” - Learner’s Dictionary

cotton

noun [ U ] uk us /ˈkɒtən/
CLOTH

B1 cloth or thread that is produced from the cotton plant:

a cotton shirt/dress
PLANT

a plant that produces a soft, white substance used for making thread and cloth

FOR CLEANING US (UK cotton wool)

a soft mass of cotton, usually used for cleaning your skin

(Definition of “cotton” from the Cambridge Learner’s Dictionary © Cambridge University Press)