Letters that make back
a, b, k, c are letters that make 'back'
3 possible definitions for 'back'
Under this definition, back is an adjective and has the following properties:
noncurrent is similar to back(a).
"back issues of the magazine"
Under this definition, back is an adjective and has the following properties:
front(a) has the opposite meaning of back(a)
rear(a), backmost, hindermost, hindmost, rearmost, rearward(a) are similar to 'back(a)'.
"the back yard", "the back entrance"
Under this definition, back is an adjective and has the following properties:
posterior is similar to back(a).
"back (or hind) legs", "the hinder part of a carcass"