This is the 213th most frequent Icelandic word.
sýna
The Icelandic word "sýna" means "to show" or "to display."
Here, 'sýna' is used in the context of 'to exhibit' or 'to display', as in showing art or objects in a public venue.
Listamaðurinn sýnir málverkin sín í nýrri sýningu.
The artist exhibits their paintings in a new exhibition.
In this sentence, 'sýna' conveys 'to demonstrate' in a metaphorical sense, displaying a quality or behavior like maturity.
Á þessu máli sýndirðu mikinn þroska.
In this matter, you showed great maturity.
Here, 'sýna' means 'to show' or 'to present', as in physically displaying something like an ID card.