The battery had a short life.
He lived a long and happy life.
Word: "life"
the same meaning

There was a chemical reaction of the lime with the ground water.
In this reaction, the acid and base will neutralize each other, producing a salt.
Word: "reaction"
the same meaning

Drop a hint.
Shop til you drop.
Word: "drop"
different meanings

He does not have a grain of sense.
There was a grain of truth in what he said.
Word: "grain"
the same meaning