say it: LOO-ow
luau is a noun meaning "an elaborate Hawaiian feast or party (especially one accompanied by traditional foods and entertainment)". It is pronounced /ˈluˌaʊ/ — LOO-ow. It carries one recorded sense.
an elaborate Hawaiian feast or party (especially one accompanied by traditional foods and entertainment)
Hawaii
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 luau 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.