tightened

But as soon as she arrived in her neighborhood in Tyre, an ancient city on the Mediterranean coast, her chest tightened and tears rolled down her face.

The reality is that illegal border crossings from Mexico have fallen dramatically in recent months as the Biden administration has tightened up especially on asylum arrivals.

Different transcription initiation sites can become available as a gene is tightened or loosened, and different proteins may be created.

The revitalized agency issued new standards for lead in drinking water and tightened requirements for vehicle and power plant emissions.

In recent years, the governing bodies of several other sports, including athletics, cycling and swimming have tightened their participation rules, banning transgender athletes in elite women's competitions.