Pronunciation: /ˈdɛkad/
noun
technical
A group or set of ten.
Origin
Early 17th century: via late Latin from Greek dekas, decad-, from deka 'ten'.

10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 - (not binary 2)
The teams of sport don't seem to appreciate the decad.
Baseball: nine, basketball: five, football and cricket: eleven, egad!
But then there's lacrosse. Been played with a thousand on a side
The modern game has ten, not too crowded on the bus ride.
[The word pentad has been a past WotD. This word is twice as good!]