Samoa UK /səˈməʊ.ə/US /səˈmoʊ.ə/ noun2 •A country consisting of the western part of the Samoan archipelago in Polynesia, in Oceania. Official name: Independent State of Samoa. Capital and largest city: Apia. Formerly Western Samoa, and, before that, German Samoa. It is distinct from American Samoa. •(US) A kind of cookie with coconut flavoring, often sold by Girl Scouts. formsSamoas