serrer

/se.ʁe/
1.
verbInf1st

to tighten (make something more secure by turning or pressing)

to fasten tightly

Il faut serrer les vis pour que ça tienne.

You have to tighten the screws so it holds.

2.
verbInf1st

to squeeze; to press together (with the hand or between surfaces)

to grip or clasp tightly

Pour arrêter le saignement, il a fallu serrer la plaie avec un pansement.

To stop the bleeding, we had to press the wound with a dressing.

3.
verbInf1st

to be tight (of clothing or footwear — to constrict or pinch)

Ce jean commence à serrer à la taille, je devrais prendre une taille au‑dessus.

These jeans are starting to feel tight at the waist; I should take a size up.

4.
verbInf1st

(colloquial) to pick someone up; to hook up (seduce or get romantic/sexual interest)

Il a réussi à serrer quelqu'un au bar hier soir.

He managed to pick someone up at the bar last night.

5.
verbInf1st

(colloquial) to arrest, to nab (by police or authorities)

Les flics ont décidé de serrer le suspect après la surveillance.

The cops decided to nab the suspect after the surveillance.