This is the 11314th most frequent French word.
rançon
Ransom.
Here 'rançon' refers to the monetary demand made for the freedom of someone.
Les kidnappeurs ont demandé une rançon pour libérer l'otage.
The kidnappers demanded a ransom to release the hostage.
In this sentence, 'rançon' is used metaphorically to signify a price or cost for a concept.
La liberté n'a pas de rançon dans ce monde.
Freedom has no ransom in this world.
Here, 'rançon' is employed figuratively to denote the consequence or toll of one's actions.