Noun: Ugandan(s)
Adjective: Ugandan
Noun: Ukrainian(s)
Adjective: Ukrainian
Noun: Emirati(s)
Adjective: Emirati
Noun: Briton(s), British (collective plural)
Adjective: British
Noun: American(s)
Adjective: American
Noun: Uruguayan(s)
Adjective: Uruguayan
Noun: Uzbekistani
Adjective: Uzbekistani