The conservator applied a special glue to stiffen the fragile pages of the antique book.

At the hint of danger, her expression stiffens into a mask of determination.

When the cold wind hit his hands, they stiffened and he could barely hold the rope.

The engineer attached a stiffening to the thin aluminum plate to prevent bending under load.

The cold wind was stiffening her muscles as she waited by the roadside.

The engineer added a stiffener to the bridge deck to prevent excessive flexing under heavy loads.

The engineer checked the alignment of the stiffeners before welding the panel.

The naval architect examined the hull's stiffenings before approving the design.

Before the Newcastle quay could finish unloading the old coal, the captain obtained a stiffening order from the customs office to take aboard ballast and a small cargo to steady the ship.

After the inspection, the site manager issued stiffening orders to strengthen the aging bridge supports.