Bond

Written instrument, sealed and delivered, binding the obliger to pay a sum of money, absolutely or upon some condition; the seal was conclusive evidence of a consideration at common law, but by modern statutes it is only presumptive; ordinarily it is not negotiable, but commercial usage has given to government and municipal bonds negotiability.-Manner in which the vertical joints of the courses of stone in a wall are laid with respect to each other. In Flemish bond headers and stretchers alternate in each course; in English bond all the face stones appear as stretchers.