1.  transferable(s = adj.all) movable, moveable, transferrable, transportable - capable of being moved or conveyed from one place to another;

2.  transferable(s = adj.all) assignable, conveyable, negotiable, transferrable - legally transferable to the ownership of another; "negotiable bonds"
Derived form noun transferability₁

1.  Capable of being transferred or conveyed from one place or person to another. [1913 Webster]

2.  Negotiable, as a note, bill of exchange, or other evidence of property, that may be conveyed from one person to another by indorsement or other writing; capable of being transferred with no loss of value; as, the stocks of most public companies are transferable; some tickets are not transferable. [1913 Webster]

transferable, adj. capable of being transferred.

Idiom:
transferable vote a vote that can be transferred to another candidate if the first choice is eliminated.

Derivative:
transferability n.