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For other uses, see Seine (disambiguation). The Seine (/seÉªn/ SAYN; French: La Seine, pronounced: [la sÉËn]) is a 777-kilometre-long (483 mi) river and an important commercial waterway within the Paris Basin in the north of France.
Â· just now. Report Abuse. Laissez-faire means to let do, or to leave alone, and to allow events to take there own course. It's a french term, and it basically means that the government should intervene as little as possible with economic affairs. Melissa S Â· 6 years ago. Thumbs up.