慎 is literary and usually appears in set phrases: 谨慎 (jǐnshèn, cautious), 慎重 (shènzhòng, careful/deliberate), 慎言 (shènyán, careful with words). Rarely used alone in modern speech.
League of Legends champion, the Eye of Twilight. A ninja tank from the Kinkou Order whose name (慎 = careful/prudent) fits his defensive, disciplined playstyle.
