This is the 7163rd most frequent French word.
monster
A creature, often imaginary, that is large, frightening, or grotesque.
Here, 'monstre' refers to a mythical or fictional creature, often imagined as frightening or threatening.
Ce monstre est caché dans les bois sombres.
This monster is hidden in the dark woods.
In this case, 'monstre' is used metaphorically to describe someone who excels significantly in a domain, emphasizing extraordinary performance or ability.
Il est un monstre d’efficacité dans son travail.
He is a monster of efficiency in his work.
Here, 'monstre' conveys the idea of enormity or excess, describing the cake as very large or impressive in size.