再び【ふたたび】
again, once more, a second time
再会【さいかい】
meeting again, reunion
再生【さいせい】
restoration to life, coming to life again, resuscitation, regeneration, reformation, rehabilitation, recycling, reclamation, recovery, playback, regeneration (of video or sound), views (of an online video), regeneration (of lost or damage tissue), regrowth, rebirth, reincarnation, recall (memory), retrieval
再開【さいかい】
reopening, resumption, restarting
再現【さいげん】
reappearance, reemergence, return, revival, reproduction, reenactment, recreation
再婚【さいこん】
second marriage, remarriage
再建【さいけん】
rebuilding, reconstruction, rehabilitation, protoform reconstruction
再三【さいさん】
again and again, repeatedly
再度【さいど】
a second time, again, once more, twice
再起【さいき】
comeback, recovery, restoration, rally
再来年【さらいねん】
year after next
再編【さいへん】
reorganization, reorganisation, reshuffle
再発【さいはつ】
return, relapse, recurrence
再選【さいせん】
re-election
再検討【さいけんとう】
re-examination, review, reconsideration, reappraisal
再開発【さいかいはつ】
redevelopment
再審【さいしん】
retrial, reopening of a case, review, reexamination
再来【さいらい】
return, coming back, second coming (e.g. of Christ), second advent, reincarnation
再燃【さいねん】
recurrence, revival, resuscitation
再販【さいはん】
resale