At the same time he reached up and took hold of the man's thumb.

In one class he had everyone write all hour about the back of his thumb.

The rule of thumb has been the more the better.

Yet, there are a few rules of thumb to keep in mind.

As a rule of thumb, the more you order, the lower the price per service.

The old rule of thumb had been no more than six months.

In the real world, the rule of thumb is you do what works.

The ball of my thumb felt like it was on fire.

The piece was no larger than the end of his thumb.

He used the ball of his right thumb to level it.