Out of it came a voice that had suddenly become weaker.

Since then, the market has become weaker for all but the best free agents.

In her old age, the mother became weak and fell ill.

She, too, had felt herself becoming weak immediately after calling Tom and the doctor.

"The danger is even greater since the trade unions have become so weak."

She has become weaker and can no longer handle chemotherapy.

The other killers decide that he has become weak, and kill him.

I felt as if my body had become weak.

Now that essence itself has become weak, or blocked in some way.

He begins losing a lot of weight and is becoming weaker.