They used to live next door to us.

Dentists used to use amalgam fillings for cavities.

The vat is used for storing liquids used in brewing and dyeing.

She is getting used to this rural life by degrees .

The Faraday constant is used to measure the amount of electricity used in electrolysis.

The US dollar is often used as a reserve currency in many countries.

In the old days, people used to barter goods instead of using money.

Radiolocation is a technique used to detect and locate objects using radio waves.

I used a twofer coupon to buy tickets for both of us at the theater.

She used to be diligent.