Declan

The Language Learning App Company

The Japanese word

段々

is pronounced
dandan | だんだん
means
gradually, by degrees
Examples:
段々暗くなっていきます。
dandan kuraku natte iki masu.
It's getting darker little by little.
彼は立ち去って、雪の中で彼の姿は段々と薄れていた。
kare wa tachisatte, yuki no naka de kare no sugata wa dandan to usure te i ta.
As he walked away, his figure gradually became dim under the snow.
Examples sourced from tatoeba.org