Definition of carabineer in English:
 carabineer
(also carabinier)
noun ˌkarəbɪˈnɪəˌkɛrəbəˈnɪr
historical A cavalry soldier whose principal weapon was a carbine.
〈史〉马枪骑兵
Example sentencesExamples
-  Two carabineers took Carlos out of his bed and one of them butted him in the chest, which caused him to fall to the ground.
 -  Light infantry also had flank companies, though their grenadiers were known as carabiniers.
 -  The two privileged regiments of Carabiniers survived the French Revolution with their elite status intact.
 -  Carabiniers were the elite of the heavy horse, and fought in most of Napoleon's greatest battles from Austerlitz to Waterloo.
 
Origin
Mid 17th century: from French carabinier, from carabine (see carbine).
   Definition of carabineer in US English:
 carabineer
(also carabinier)
nounˌkerəbəˈnirˌkɛrəbəˈnɪr
historical A cavalry soldier whose principal weapon was a carbine.
〈史〉马枪骑兵
Example sentencesExamples
-  Carabiniers were the elite of the heavy horse, and fought in most of Napoleon's greatest battles from Austerlitz to Waterloo.
 -  Light infantry also had flank companies, though their grenadiers were known as carabiniers.
 -  Two carabineers took Carlos out of his bed and one of them butted him in the chest, which caused him to fall to the ground.
 -  The two privileged regiments of Carabiniers survived the French Revolution with their elite status intact.
 
Origin
Mid 17th century: from French carabinier, from carabine (see carbine).