say it: si-LAHN
ceylon is a noun meaning "an island in the Indian Ocean off the southeastern coast of India". It carries 2 recorded senses.
an island in the Indian Ocean off the southeastern coast of India
a republic on the island of Ceylon; became independent of the United Kingdom in 1948
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 ceylon 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.