the Roman god of doorways, passages, and bridges. In art he is depicted with two heads facing opposite ways
Word origin
C16: from Latin, from jānus archway
Janus in British English2
(ˈdʒeɪnəs)
noun
a small inner satellite of Saturn
Janus in American English
(ˈdʒeɪnəs)
noun
1. Roman Mythology
the god who is guardian of portals and patron of beginnings and endings: he is shown as having two faces, one in front, the other at the back of his head
2.
a small satellite of Saturn
Word origin
L, lit., gate, arched passageway < IE base *yă-, var. of *ei-, to go > year