noun
dictum
DIK-tum/ˈdɪktəm/
An authoritative statement of an opinion or principle.
The judge delivers a dictum to the attentive younger legal professionals.

Etymology
A Latin dictum was a “thing said,” including a saying, order, or command. That range helps explain why an English dictum is not just any remark but a statement carrying implied authority.
In context
You may have heard the military dictum for the gathering of armies: March to the sound of the guns.
More examples
- His favorite dictum is simple: measure twice, cut once.
- She challenges the director's dicta about what makes good art.
- The judge's comment is a dictum, not essential to the court's decision.
Forms
dictum · dicta · dictums