This is the 8134th most frequent Russian word.
леонов
"Леонов" is a Russian surname and does not have a direct definition in English.
Here, 'Леонов' refers to Alexey Leonov, a Soviet cosmonaut and individual proper noun.
Леонов был первым человеком, который вышел в открытый космос.
Leonov was the first human to exit into open space.
In this case, 'Леонов' is used as the title of a creative work.
Мне нравится произведение 'Леонов', написанное этим автором.
I like the work 'Leonov' written by this author.
Here, 'Леонову' (dative form of 'Leonov') indicates a dedication to the individual, suggesting a tangible connection to his memory.