Social Background

• 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

• 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

• downward and forward

• two together

• to double the degree

• 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

• large enough for two

• having two meanings with intent to deceive

• increase twofold

• hit a two-base hit

• bend over or curl up, usually with laughter or pain

• do double duty; serve two purposes or have two functions

• make a demand for (a card or suit)

• make or do or perform again

• a person's social heritage: previous experience or training

• the part of a scene (or picture) that lies behind objects in the foreground

• information that is essential to understanding a situation or problem

• extraneous signals that can be confused with the phenomenon to be observed or measured

• relatively unimportant or inconspicuous accompanying situation

• the state of the environment in which a situation exists

• (computer science) the area of the screen in graphical user interfaces against which icons and windows appear

• scenery hung at back of stage

• understate the importance or quality of