This is the 9216th most frequent Russian word.
смолин
"Смолин" is a Russian surname and does not have an inherent standalone meaning in English.
Here 'Смолин' is used as a proper noun, namely a surname, to identify a specific individual.
Смолин был известным политиком в XX веке.
Smolin was a famous politician in the 20th century.
Here 'смолин' is referred to as material, most likely resin, used in manufacturing contexts.
На фабрике смолин используется для создания пластика.
At the factory, resin is used for creating plastics.
In this sentence, 'Смолина' refers to a street name, which is derived from the same root and indicates a location.