say it: si-SESH-uhn
secession is a noun meaning "an Austrian school of art and architecture parallel to the French art nouveau in the 1890s". It carries 3 recorded senses.
an Austrian school of art and architecture parallel to the French art nouveau in the 1890s
the withdrawal of eleven southern states from the Union in 1860 which precipitated the American Civil War
formal separation from an alliance or federation
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for secession come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.