A liberal political complexion.
He altered the complexion of his times.
Word: "complexion"
the same meaning

It is not known who created this piece.
I need to rest for a piece.
Word: "piece"
different meanings

The maths problem is a real snorter, isn't it?
The problem was a real snorter.
Word: "snorter"
the same meaning

We simply could not start the engine.
John started the party.
Word: "start"
different meanings