The lab ordered extra stoppers for the flasks before the experiment.

She stoppered the vial before sending it to the lab.

She placed the stoppered vial on the lab bench.

Stoppering the test tubes carefully, she prevented contamination during the experiment.

When the protest turned violent, a young volunteer became the stopper, forming a human barrier to protect the fleeing families.

She used a cork to stopper the wine bottle before putting it away.

The antique shop displayed a row of ornate tobacco-stoppers that once sealed containers of snuff.

The young shot stoppers impressed the scouts with their quick reflexes during the weekend tournament.

The team's success this season relied heavily on their shot-stoppers pulling off miraculous saves in crucial moments.

Before the storm, the oysterman's stoppers were secured tightly on every crate to prevent the shells from spilling.