I noticed a TV show in a streaming app that basically has 2 seasons, but I'm wondering why do they use the word differently i.e. season and installment (instalment if it's British according to OALD)
I did look the words up, and from the dictionary, installment can also mean episode which once made me think twice when there was an ad of this TV show that told there's a new installment and I thought the second episode of the second season has already come out, and in the end I realised the ad meant to tell that the first episode of the second season is the one that's already available.
Regardless, are those two words synonymous? Or is it just the app that uses the word incorrectly?