The race has a double purpose for the cycling duo.

For Physics students the laboratory classes serve a double purpose.

Such investments had a double purpose, for they could bring in income and provide a political bonus.

My first object was to build a log house to answer the double purpose of school and church.

He could easily have done so, but he had a double purpose in mind.

And where in Burma would she find him, particularly now it appeared his journey there might have a double purpose?

The Shadow raced toward his goal, now with a double purpose.

We were told that this had a double purpose.

He said that it could serve a double purpose as a bomb shelter.

His visit to Israel this week had a double purpose.