in artillery usage, a tactical mission in which one artillery unit augments the fire of another artillery unit. Reinforcing is not used by aviation forces.

reinforcing bar (rebar): round mild steel rod to increase tensile strength of concrete

Rebar placed into a cast stone part during the manufacturing process to augment the part during handling or to enable it to carry a structural load (i.e. lintel).

strengthening or stiffening a part in a product so that it can perform its function better i.e. is less likely to break or bend

Various methods of using wire, bars or other material to strengthen projects.

Metal that is built into brickwork e.g. reinforcing bars