He was a bull of a man.
What he said was mostly bull.
Word: "bull"
different meanings

Have a lover.
We had a hard year last year, with the locust swarms and all that.
Word: "have"
different meanings

She has a heart of gold.
The child was as good as gold.
Word: "gold"
the same meaning

The story is false, so far as I can discover.
I discovered what he should do.
Word: "discover"
the same meaning