Definition from macmillandictionary.com
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Aerobic exercise strengthens the heart.
Doctors say his injured shoulder will take time to strengthen.
The bridge will need to be strengthened.
Her objections only strengthened my resolve to open my own business.
a sense of community that has strengthened over time
Senior officials will discuss strengthening the UN force.
programmes aimed at strengthening local economies
The amendment will strengthen the bill.
The new evidence strengthens Wilkins’ case.
The dollar continues to strengthen against the yen.
The gale continued to strengthen throughout the night.