As nouns the difference between sider and sixer
is that sider is one who takes a side while sixer is a Cub Scout who leads a group of six.
sider
English
Etymology 1
Noun
(
en noun)
One who takes a side.
* Robert Ram, The Souldiers Catechisme
- enemies of God and our Religion, and siders with Antichrist
Etymology 2
Noun
----
sixer
English
Noun
(
en noun)
A Cub Scout who leads a group of six.
* 1995 , Boy Scouts of Canada. National Council, The Cub Book
- Many packs have a sixer' s council where the sixers, and sometimes the seconds, meet with Akela and some of the other leaders.