Denary (10)

Duodenary (12)

Hexadenary (16)

Vigenary (20)

Octonary (8)

Senary (6)

Quinary (5)

Septenary (7)

Nonary (9)

Tridenary or Tredenary (13)

Undenary (11)

Primary (1)

A Secondary dominant in music.

The Secondary in American football and Canadian football refers to the group of (usually at least four) defensive backs.

A Secondary functional group (or usually ion) attached to carbon atom connected to 2 other Carbon atoms in organic chemistry

Secondaries, the second-largest group of remiges (wing feathers), which attach to the inner lower arm.

secondary circuit, electrical circuit in a Transformer in which current is produced by electromagnetic induction, as opposed to a primary circuit.