Home › Words › D › decennarydecennary/dɪˈsɛnəɹi/decennary means decennial: of or related to a ten-year period.decennary is pronounced /dɪˈsɛnəɹi/.EtymologyFrom Latin decennis (“decennial, of ten years”) + -ary.adjDecennial: of or related to a ten-year period.nounA decennium: a period of ten years.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.decennal 91% match — Synonym of decennial, of or related to a 10-year period. vs decennary →decennalian 89% match — Synonym of decennial, of or related to a ten-year period. vs decennary →decennium 82% match — Synonym of decade: a ten year period. vs decennary →decadal 82% match — Of or related to the number ten. vs decennary →decenniad 81% match — Synonym of decade: a period of 10 years. vs decennary →decennial 79% match — Synonym of decade, a ten-year period. vs decennary →decenary 78% match — Of or related to the number ten, (particularly) as a base of numeration. vs decennary →decennially 77% match — Every ten years. vs decennary →