A shared spirit of comradeship, enthusiasm, and devotion to a cause among the members of a group, for example of a military unit
Fellow-feeling for the society with which you are associated A military term - every soldier will stand up for his own corps
group spirit, feeling of camaraderie among members of a group or organization (French)
Esprit de corps is a feeling of loyalty and pride that is shared by the members of a group who consider themselves to be different from other people in some special way. feelings of loyalty towards people who are all involved in the same activity as you = team spirit
(French) Literally, "spirit of the body " Special spirit of a group or organized body implying exceptional loyalty, devotion or enthusiasm of the members for the cause for which the group was formed