"一斉に" means "all at once", "all together", "simultaneously"

Kanji in this word

Related words "一"

• 一因 (ichiin)one factor
• 一員 (ichiin)one member
• 一応 (ichio)tentatively
• 一群 (ichigun)one group
• 一芸 (ichigei)an art
• 一撃 (ichigeki)blow

Related words "斉"

• 一斉に (isseini)all at once, all together, simultaneously
• 均斉 (kinsei)symmetry