Get the FREE one-click dictionary software for Windows
or the iPhone/iPad and Android apps
Noun: decennary  di'se-nu-ree
Usage: archaic
  1. A period of 10 years
    "The company celebrated its decennary with a grand party";
    - decade, decennium

Derived forms: decennaries

Type of: period, period of time, time period, time span

Part of: century