signe

For the Antarctic island of Signy, one of the South Orkneys, click here. Signe is the name of two heroines in two connected legends from Scandinavian mythology which were very popular in medieval Scandinavia. Both appear in the Völsunga saga, which was adapted into other works such as Wagner's Ring, including its famous opera The Valkyrie.
See more at Wikipedia.org...

n. sign, indication; wave, motion, gesture; index, mark; cross; evidence, token

v. sign, sign up, put signature; subscribe; autograph; indorse, set one's hand to

v. denote, symbolize; mark