They used equity financing from their primary residence, the least costly method, they decided.

"We have to use the least costly method of dealing with failures," he said.

The Froude efficiency is about 0.09, which indicates a very costly method of locomotion.

Using internal human resources may be a less costly method.

I do not take issue with the need to seek new and less costly methods for treating disease.

Since then newer and less costly methods have been developed.

For now, however, we'll have to depend on more traditional, less costly methods of filtration and absorption.

It might be considered an expensive reward for achieving a high standard and a costly method of public relations.

Its last desperate bid for escape was to use magic-the most costly method of travel.

It had become difficult for him to adapt to more modern and less costly methods.