en·sign
noun/ˈensən/
/ˈensən/
- a flag flown on a ship to show which country it belongs to
（表明国籍的）舰旗，船旗 - the White Ensign (= the flag of the British Navy)
英国海军军旗
- the White Ensign (= the flag of the British Navy)
- an officer of low rank in the US navy
（美国）海军少尉 - Ensign Marshall
马歇尔海军少尉
- Ensign Marshall
Word Originlate Middle English: from Old French enseigne, from Latin insignia ‘signs of office’, neuter of insignis ‘distinguished (as if by a mark)’, from in- ‘towards’ + signum ‘sign’.