noun
raising morale; lifting of morale
A yojijukugo used in formal or organizational contexts to describe boosting the spirits or motivation of a group.
社長のスピーチは社員の士気高揚につながった。
The president's speech led to a boost in employee morale.
A yojijukugo composed of 士気 (morale) and 高揚 (elevation, uplift). The exact historical derivation is uncertain, but it follows a common pattern of combining two two-character compounds.