救援【きゅうえん】
relief, rescue
救済【きゅうさい】
relief, aid, help, rescue, (religious) salvation, (Christian) grace
救急【きゅうきゅう】
first-aid, emergency (aid)
救助【きゅうじょ】
relief, aid, rescue
救急車【きゅうきゅうしゃ】
ambulance
救い【すくい】
help, rescue, aid, relief, salvation, solace, (source of) comfort, saving grace, (religious) salvation, (Christian) grace
救う【すくう】
to rescue from, to help out of, to save
救世軍【きゅうせいぐん】
Salvation Army