This is the 3751st most frequent Polish word.
martyna
"Martyna" is a Polish given name, equivalent to "Martina" in English.
Here, 'Martyna' refers to a proper noun, a person's name, and is the subject of the sentence.
Martyna jest moją najlepszą przyjaciółką.
Martyna is my best friend.
In this sentence, 'Martyna' is a proper noun used to indicate someone who wished to communicate a message.
Zaraz zobaczę, co Martyna chciała nam przekazać.
I'll see shortly what Martyna wanted to convey to us.
Here, 'Martyna' refers to a concept, specifically a given name, and the sentence explains its etymology.