Twice the number, amount, size, etc. / A person who resembles and stands in for another person, often for safety purposes / A drink with two portions of alcohol.

A dish shape or deformation; a concavity. / (sometimes figuratively) The act of placing in a dish, as when presenting food to be served.

(pharmacology) Used to form names of analgesics.

(Hinduism) An annual festival of light, observed during several days in October and November.