Tarn (proper noun) /tɑːn/
1
A department of Occitanie, France; previously in Midi-Pyrénées (INSEE code 81).
2
A river in southwestern France.
tarn (noun) /tɑɹn/, [tɝn]
1
(Northern England) A small mountain lake, especially in Northern England.
2
(US, chiefly Montana) One of many small mountain lakes or ponds.