This is the 1961st most frequent Japanese word.
ごとく
"ごとく" means "like" or "as if," used to indicate similarity or comparison.
Here, 'ごとく' expresses similarity between the snow fluttering and petals fluttering, forming a poetic comparison.
雪が舞う様子は花びらが舞うごとくだった。
The way the snow fluttered was like petals fluttering.
In this sentence, 'ごとく' is again used to draw a resemblance, emphasizing the pleasantness of laughter akin to bell sounds.
彼女の笑い声は鈴の音ごとく耳に心地よい。
Her laughter was as pleasant to the ear as the sound of bells.
In this usage, 'ごとく' is used to mean 'like' or 'as if,' establishing a simile comparing one's behavior to that of a hero.