This is the 7626th most frequent Japanese word.
加
"加" means "add" or "increase."
加えてください: To add something to something else.
食事に少し塩を加えてください。
Please add a little salt to the meal.
加速しました: Indicates a quickened speed or intensity.
問題が解決したため、緊張が加速しました。
Because the issue was resolved, tension accelerated.
加わります: To join or participate in something.