Onset
01
開始, 発端
the beginning point or stage of something, especially unpleasant
例
The onset of winter brought heavy snowfall and freezing temperatures.
冬の始まりは、大雪と凍えるような気温をもたらしました。
With the onset of the storm, residents hurried to secure their homes.
嵐の始まりとともに、住民は急いで家を守った。
02
開始, 攻勢
(military) an offensive against an enemy (using weapons)
03
攻撃, 頭子音
the initial sound or sounds of a syllable that come before the vowel, forming the beginning part of a syllable and can consist of one or more consonant sounds



























