Double

a base hit on which the batter stops safely at second base

a stand-in for movie stars to perform dangerous stunts

someone who closely resembles a famous person (especially an actor)

a quantity that is twice as great as another

raising the stakes in a card game by a factor of 2

increase twofold

hit a two-base hit

bend over or curl up, usually with laughter or pain

do double duty

bridge: make a demand for (a card or suit)

make or do or perform again

having more than one decidedly dissimilar aspects or qualities

consisting of or involving two parts or components usually in pairs

twice as great or many

used of flowers having more than the usual number of petals in crowded or overlapping arrangements

used of homologous chromosomes associated in pairs in synapsis

large enough for two

having two meanings with intent to deceive

downward and forward

two together

to double the degree