noun
importance; priority; degree of importance
Refers to the level or degree of importance, often used in contexts like ranking, evaluation, or setting priorities.
このタスクの重要度は高い。
The importance of this task is high.
重要度に応じて仕事を整理する。
Organize work according to priority.
優先度 specifically means 'priority' in the sense of order of precedence, whereas 重要度 is about the degree of importance itself.
Compound of 重要 (important) + 度 (degree).