The floor of the pelvis.
The floor of a cave served the refugees as a home.
Word: "floor"
the same meaning

Drill a hole into the wall.
Don't drill here, there's a gas pipe.
Word: "drill"
the same meaning

His parting shot was 'drop dead'.
I caught him with a solid shot to the chin.
Word: "shot"
different meanings

They were sitting by the water's edge.
First you have to cut off the water.
Word: "water"
different meanings