搭載[tousai] loading (on board)
搭乗[toujou] embarkation
搭乗案内[toujouannai] boarding announcement
搭乗券[toujouken] boarding passes
搭乗員[toujouin] crew member

搭乗橋[toujoukyou] gangway
搭乗者[toujousha] passenger
搭乗手続きカウンター[toujoutetsuzukikauntaa] check-in counter
搭乗手続き[toujoutetsuzuki] boarding