Millimetres rhymes with:
centimetres, centimetres, centimetres, millilitres, centimetres, kilometres, metres, millilitres, centimetres, kilometres, metres, millilitres
Millimetres sounds like:
mainlanders, melendrez, millimeters
centimetres, centimetres, centimetres, millilitres, centimetres, kilometres, metres, millilitres, centimetres, kilometres, metres, millilitres
mainlanders, melendrez, millimeters