Thanks for using this online dictionary, we have been helping millions of people improve their use of the Sinhala language with its free online services. English meaning of තුමු is as below...

තුමු : තුමු, suf. pl. of තෙම: often placed after or for the nom. pl. in classical writing, as දෙවියෝ තුමු, ස්ත්‍රි‍යෝතුමු, පුස්තකතුමු.