Charges of opposite sign.
He posted signs in all the shop windows.
Word: "sign"
OPTIONS:
- different meanings
- the same meaning
different meanings

I gave him a bit of my mind.
A bit of lint.
Word: "bit"
OPTIONS:
- different meanings
- the same meaning
the same meaning

The subjects' set led them to solve problems the familiar way and to overlook the simpler solution.
His instructions deliberately gave them the wrong set.
Word: "set"
OPTIONS:
- different meanings
- the same meaning
the same meaning

The piano had a very stiff action.
A rifle action.
Word: "action"
OPTIONS:
- different meanings
- the same meaning
the same meaning