This is the 97th most frequent Catalan word.
llei
"Law"
Here, 'llei' refers to the legal framework or set of rules established to maintain order and justice.
La llei protegeix els drets dels ciutadans.
The law protects the rights of citizens.
In this sentence, 'llei' signifies a principle or rule in scientific contexts discovered through research.
Els científics van descobrir una nova llei de la física.
The scientists discovered a new law of physics.
Here, 'llei' metaphorically references a natural or universal principle that governs the essence of life.