Oklahoma is a state in the south-central United States.
Tips
culture
Oklahoma comes from the Choctaw words okla ('people') + humma ('red'), meaning 'red people'. The state was largely settled during the Land Run of 1889 and is famous for tornado alley and the 1995 Oklahoma City bombing.
memory
Sound-mapping: 俄 for 'O-', 克 plus 拉 for '-kla-', 何 for '-ho-', 马 for '-ma'. The five characters trace each English syllable.