decade (n.)
- annum
- century
- day
- decagon
- decagram
- decahedron
- decaliter
- decameter
- decasyllable
- decennary
- decennium
- decigram
- deciliter
- decimeter
- fortnight
- hour
- lunation
- luster
- lustrum
- microsecond
- millennium
- millisecond
- minute
- moment
- month
- moon
- quarter
- quinquennium
- second
- semester
- session
- sun
- ten
- tenner
- term
- trimester
- twelvemonth
- week
- weekday
- year