This is the 7526th most frequent Russian word.
диксон
"Dиксон" refers to Dikson, a Russian urban locality and port in the Arctic, located in Krasnoyarsk Krai.
In this sentence, 'Диксон' is used as a proper noun referring to the name of a specific location.
Диксон — это самый северный поселок в России.
Dikson is the northernmost settlement in Russia.
Here, 'Диксон' is again a proper noun, referenced as the object of the desire to visit.
Я всегда мечтал посетить поселок Диксон.
I have always dreamed of visiting the settlement of Dikson.
In this sentence, 'Диксон' is used to refer to the settlement, focusing on the climatic conditions of the location.