decennium

From Latin decennium, from decennis (“10-year”) + -ium (“forming abstract nouns”).

• (UK) IPA^(key): /dɪˈsɛnɪəm/

decennium (plural decenniums or decennia)

1. Synonym of decade: a ten year period.

   Coordinate terms: annum, biennium, triennium, quadrennium, quinquennium, sexennium, septennium, octennium, novennium, centennium, quincentennium, millennium, decamillennium, centimillennium, millionennium

   • 1998, soc.culture.netherlands‎ (Usenet):

     G.B. still has to cope with the heritage of approx. 20 years of consecutive Conservative reigns, just as you guys are getting your act together after almost a decennium of Enlightened Ronnie.

   • 1996, soc.culture.usa‎ (Usenet):

     Christian leaders refused even to *look* through Galileo's telescope (as a matter of fact, the Vatican cleared Galileo's name only as late as in the previous decennium).

When decennium is used in place of the more common decade, it is generally employed to avoid the connection of decade with the set spans of ten year calendar periods whose last digits run from 0 to 9.

• decenniad

• (adj.): See decennial
• (adv.): See decennially
• (10-year anniversary): decennial

From Latin decennium.

decennium n (singular definite decenniet, plural indefinite decennier)

1. decade; a period of ten years

• “decennium” in Den Danske Ordbog
• “decennium” in Ordbog over det danske Sprog

Borrowed from Latin decennium.

• IPA^(key): /ˌdeːˈsɛ.ni.ʏm/

• Audio

  (file)

• Hyphenation: de‧cen‧ni‧um
• Rhymes: -ɛniʏm

decennium n (plural decennia or decenniën or decenniums, diminutive decenniumpje n)

1. A decade, a period of ten years.

• decade (rare)
• jaartiental

decennis +‎ -ium

• (Classical) IPA^(key): /deˈken.ni.um/, [d̪ɛˈkɛnːiʊ̃ˑ]
• (Ecclesiastical) IPA^(key): /deˈt͡ʃen.ni.um/, [d̪eˈt͡ʃɛnːium]

decennium n (genitive decenniī or decennī); second declension

1. decennium; decade

Second-declension noun (neuter).

¹Found in older Latin (until the Augustan Age).

• duodecennium

• biennium
• triennium
• quadriennium
• quinquennium
• sexennium
• septuennium
• octennium
• vicennium
• tricennium

• biduum
• triduum
• trimenium

• “decennium”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• decennium in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette

decennium n (definite singular decenniet, indefinite plural decennier, definite plural decennia or decenniene)

1. alternative spelling of desennium

decennium n (definite singular decenniet, indefinite plural decennium, definite plural decennia)

1. alternative spelling of desennium

• IPA^(key): /dɛˈsɛnɪɵm/

• audio

  (file)

decennium n

1. decade; a period of ten years