1.   But then, of course, I knew how that idea had gained currency.

2.   Even so, the idea gained complete acceptance only early this century.

3.   His ideas are gaining a lot of support.

4.   His ideas quickly gained credence among economists.

5.   Their ideas gain plausibility amongst the idle, the envious and the unlettered.

6.   This idea is gaining adherents.

7.   Is it utopian to hope that such iconoclastic ideas will gain ground?

8.   Her ideas have gradually gained influence in the company.

9.   It is not possible to enter into this debate here, for as yet these ideas have not gained universal acceptance.