1.  A prudential practice is instrumental in nature, being designed to achieve a specific substantive purpose.

2.  By virtue of their ubiquity, popular prints were instrumental in helping to shape the perceptions of the vast majority.

3.  He has been instrumental in the complete change in my appearance - a good hairdresser is a very valuable asset!

4.  Ida Smedley was instrumental in advancing the professional status of university women.

5.  In objectification, the artefact appears to be instrumental in linking these major processes of abstraction and specificity.

6.  Last December they were instrumental in getting rid of Mr Gaidar and replacing him with one of those industrialists.

7.  Mary had been instrumental in securing my release from jail.

8.  Page was instrumental in the creation of the new Mainan ambitious public works project funded through a public-private partnership.

9.  Seasoned observers have no doubt that the vocal response of so many has been instrumental in applying a brake.

10.  Siegel was instrumental in creating the Las Vegas as it is today.