Social Democratic Party

American  

noun

1. History/Historical. a political party in Germany advocating a form of social organization based on the economic and political ideology of Karl Marx.

2. any of several European political parties advocating a gradual transition to socialism or a modified form of socialism by and under democratic processes.

3. a U.S. political party, organized about 1897, that joined former members of the Socialist Labor party to form the Socialist party.

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Social Democratic Party British  

noun

1. (in Britain 1981–90) a centre political party founded by ex-members of the Labour Party. It formed an alliance with the Liberal Party and continued in a reduced form after many members left to join the Social and Liberal Democratic Party in 1988

2. one of the two major political parties in Germany (formerly in West Germany), favouring gradual reform

3. any of the parties in many other countries similar to that of Germany

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Example Sentences

Underscoring the country’s new psyche, school choice is now deeply entrenched in Sweden, with broad backing among parents and within both the current center-right government and center-left opposition Social Democratic Party.

From The Wall Street Journal • May 12, 2026

"We're seeing this existential anxiety within the Social Democratic Party" which "doesn't know what it should do right now to get back to where it used to be", Ciobanu added.

From Barron's • May 5, 2026

Think the birth of the Social Democratic Party, or SDP, in 1981.

From BBC • May 2, 2025

But as the Weimar Republic's economy collapsed, so did the ruling coalition led by the center-left Social Democratic Party.

From Salon • Apr. 5, 2025

Guillaume joined the Social Democratic Party of Germany and eventually became a trusted aide to Willy Brandt—who was first the mayor of West Berlin and then rose to become chancellor of West Germany.

From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau