دوره سه‌ماهه
type: Concept
preferred label: trimester @en
related: ماه (جزء فصل)

سال
type: Concept
preferred label: year @en
related: ماه (جزء فصل)

ماه (جزء فصل)
type: Concept
broader: مدت
preferred label: month @en
related: نیم‌سال
related: هفته
related: سال
related: دوره سه‌ماهه

نیم‌سال
type: Concept
preferred label: semester @en
related: ماه (جزء فصل)

هفته
type: Concept
preferred label: week @en
related: ماه (جزء فصل)

مدت
type: Concept
narrower: ماه (جزء فصل)
preferred label: duration @en