In the old manuscript, the poet lamented the weakenes of his heart after years of sorrow.

Excessive screen time weakens children's ability to concentrate during class.

Engineers documented multiple weakenings in the dam's concrete after the earthquake.

The constant stress is weakening the old bridge's supports.

The weakening of the bridge's supports raised immediate concerns among the engineers.

Frequent stress can weaken your immune system over time.

The weakened bridge swayed under the heavy traffic.

The old bridge weakened during the storm.

Chronic stress proved to be a powerful weakener of her immune system.

Researchers identified several weakeners that reduced the durability of the new polymer.