also: でびゅう
noun, noun or participle which takes 'suru', intransitive verb
debut; first appearance; doing something for the first time
Used as a noun or with する for making a first public/professional appearance, or more broadly for trying or starting something for the first time. Often appears as Xデビュー for a first experience in some area.
from French début
彼女は十七歳で歌手としてデビューした。
She debuted as a singer at seventeen.
I tried camping for the first time over the weekend.
noun, noun or participle which takes 'suru', intransitive verb
starting anew; starting afresh
Colloquial use, especially in compounds such as 大学デビュー or 高校デビュー, for beginning a new stage with a changed image, lifestyle, or social persona. It can sound mildly teasing depending on context.
彼は大学デビューして、急に派手な服を着るようになった。
He reinvented himself in college and suddenly started wearing flashy clothes.