ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ noun
Etymology: rudder (I) + fish
: any of various fishes reputed to follow or accompany ships:
a. : pilot fish 1
b. : banded rudderfish
c. : any of several butterfishes (family Stromateidae)
d. : any of various fishes of the family Kyphosidae ; especially : bermuda chub
e. : the opaleye or other fish of the family Girellidae