Q: Does "throw" have the same meaning in the following two sentences?

The horse threw its rider.

She threw herself forwards.

A: different meanings

Q: Does "fit" have the same meaning in the following two sentences?

How does this shirt fit?

If I lose a few kilos, the gorgeous wedding dress might fit me.

A: the same meaning

Q: Does "be" have the same meaning in the following two sentences?

I shall be writing to you soon.

I am 75 kilograms.

A:
the same meaning