(countable, uncountable, informal) Cola-based soft drink; Coca-Cola.

(countable, informal) A bottle, glass or can of Coca-Cola or a cola-based soft drink.

(US, especially Southern US, informal) Any soft drink, regardless of type.

(uncountable) Solid residue from roasting coal in a coke oven; used principally as a fuel and in the production of steel and formerly as a domestic fuel.

(informal, slang, uncountable) Cocaine.

(uncountable, informal) Alternative letter-case form of Coke (cola-based soft drink, especially Coca-Cola).

(countable, informal) Alternative letter-case form of Coke (a serving of cola-based soft drink, especially Coca-Cola).

(US, chiefly Southern US, informal) Alternative letter-case form of Coke (any soft drink, regardless of type).

(transitive) To produce coke from coal.

(intransitive) To turn into coke.

(especially automotive, astronautics) To add deleterious carbon deposits as a byproduct of combustion.