This is the 11711th most frequent French word.
serrée
Tight or close.
In this context, 'serrée' metaphorically represents a difficult or constraining situation.
Nous sommes dans une situation serrée.
We are in a tight situation.
Here, 'serrée' depicts the compactness or lack of space due to a dense crowd.
La foule était tellement serrée qu’il était difficile de bouger.
The crowd was so tight-packed that it was hard to move.
Here, 'serrée' is used to describe an object (the dress) being tight-fitting.