1To spread throughout or to reach everywhere; for something (information, effects, benefits) to become widespread or to reach all parts.
新しい制度の説明が社員に行き渡った。
The explanation of the new system reached all the employees.
冷房の効いた部屋に冷気が行き渡るまで少し時間がかかった。
It took a little while for the cool air to spread throughout the air-conditioned room.
礼金が村人全員に行き渡った。
The monetary gifts were distributed to all the villagers.