Able to be traversed; navigable.
Able to be transferred to another person, with or without endorsement, in exchange for money.
Open to negotiation or bargaining.
Something that is open to negotiation.
That may be passed or traversed.
able to "pass", or be accepted as a member of a race, sex or other group to which society would not otherwise regard one as belonging.
Tolerable; adequate; no more than satisfactory.