fortifies

"The new school security measures made the building more defensible. "

"The cake recipe lists flour, sugar, and eggs as the main ingredients. "

"strengthen a muscle"

"The nutritional value of the breakfast cereal is high, providing many essential vitamins. "

"The increase in homework assignments this week was significant. "

"The soldiers were fortifying the town with sandbags and barbed wire to prepare for the enemy's arrival. "

"The neighboring country's invasion of the smaller nation disrupted the delicate peace in the region. "

"He spent six years in the military."

"You should put more protein in her breakfast so she will grow."

"We enjoyed a glass of fortified after dinner. "

"The farmer's land was very productive, yielding a large harvest of tomatoes. "

"The castle's high walls and strong towers were its main defenses against invaders. "