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

After careful reflection, I have decided not to vote for that proposition.

He studied his reflection in the mirror.

A: different meanings

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

Don't run that software unless you have permission.

The dogs are running deer.

A: different meanings

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

The trunk was full of stuff.

Wheat is the stuff they use to make bread.

A:
different meanings