(n): a person who enjoys taking risks
(n): (Greek mythology) one of the heroes who sailed with Jason in search of the Golden Fleece
(n): an imaginary person represented in a work of fiction (play or film or story)
(n): cephalopod mollusk of warm seas whose females have delicate papery spiral shells
(n): a cephalopod with eight arms but lacking an internal shell
From the 1930s until the 1960s, the Australian Broadcasting Commission broadcast a daily children's show "The Argonauts". It was also a radio club: each member had a number and was allocated to a ship in Jason's fleet (the membership records are now lost). It was hugely popular and influenced a whole generation of Australians.