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

نیم‌سال
preferred label: semester @en
type: Concept
related: سال

قرن
preferred label: century @en
type: Concept
related: سال

سال
broader: مدت
related: دوره سه‌ماهه
related: ماه (جزء فصل)
related: سالیانه
related: قرن
related: نیم‌سال
preferred label: year @en
type: Concept

مدت
preferred label: duration @en
type: Concept
narrower: سال

سالیانه
preferred label: annual @en
type: Concept
related: سال

دوره سه‌ماهه
preferred label: trimester @en
type: Concept
related: سال