2、$10,000 is a tidy sum of money.
1、It must have cost a tidy sum.
3、She's put aside a tidy sum for her retirement.
5、After hearing about a neighbor who had returned from China after making a tidy sum as a migrant worker, she decided to try her luck.
4、Since I had a tidy sum of money saved I was not unduly anxious about finding another job immediately.