He aimed the double-barrelled shotgun at the target.

There are double yellow lines on the road.

I saw two double-decker buses on my way to work.

I used a double-ended queue to store the data.

Double replacement reactions are common in chemistry experiments.

In chemistry, a double replacement reaction is a type of chemical reaction where two compounds exchange ions to form two new compounds.

Double-replacement reactions occur when two compounds exchange ions to form two new compounds.

In chemistry, a double-replacement reaction is a type of chemical reaction where two compounds exchange positive ions to form two new compounds.

I need to implement a data structure that supports both insertion and deletion at both ends, so I decided to use double-ended queues.

The music score uses double bar lines to indicate the end of a section.