noun. Something possessing or connected with six or a set of six objects.

noun. In cricket, a hit which scores six runs.

noun. A Cub Scout who leads a group of six.

noun. the cardinal number that is the sum of five and one

"Just left the Chamber to find the First Minister in his room in deep discussion with two brownies from Caerphilly, including a 'sixer' - a senior position in 'brownie's world'."

double sixer  

digit  figure  

elixir  fixer  mixer