Ahom is a tonal language and has 5 Tones

Example -

𑜀𑜡 𑜀𑜡, 𑜀𑜡; 𑜀𑜡: 𑜀𑜡.
ka kà kā ká kâ

Rising Tone ka means crow
Low Tone kà means go
Middle Tone kā means v. dance/ prep. place
High Tone ká means car
Falling Tone kâ means trade