We don't have synonyms for blue ensign yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are blue ensigns.
(n) :
The flag flown by a British naval auxiliary vessel. Members of certain British yacht clubs may also fly a blue ensign if it has been defaced by the inclusion of an insignia in the fly.
(n) :
Originally, the flag of the Rear Admiral's squadron in the English fleet.
(n) :
The flag flown by a British naval auxiliary vessel. Members of certain British yacht clubs may also fly a blue ensign if it has been defaced by the inclusion of an insignia in the fly.
(n) :
Originally, the flag of the Rear Admiral's squadron in the English fleet.