== {{-it-}} ==
{{-sost-|it}}
{{Pn}} ''m  sing'' {{Linkp|trentenni}}
# {{Term|astronomia|it}} [[periodo]] di trent'anni

{{-sill-}} 
; tren | tèn | nio

{{-pron-}}
{{IPA|/trenˈtɛnnjo/}}

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da [[trenta]] ed [[-ennio]]

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* [[trentennale]]

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{{Trad1|}}
:*{{en}}: thirty-year period 
{{Trad2}}

{{-ref-}}
* {{Fonte|trec}}
* {{Fonte|hoep}}
* {{Fonte|gar}}
* {{Fonte|dizit}}