This is the 2833rd most frequent French word.
dedans
"Dedans" means "inside" or "indoors."
In this sentence, 'dedans' refers to being inside a physical or metaphorical space.
Je suis dedans.
I am inside.
Here, 'dedans' is combined with 'là-' to specify the location as inside something that is previously mentioned or pointed to.
Ne mets pas tes clés là-dedans.
Do not put your keys in there.
In this instance, 'dedans' indicates being within a context or an environment, such as a room or a situation.