rebirth

復活(ふっかつ)	Resurrection, rebirth:use this about Jesus. Also can be used about a revival of some retro trend.

再生(さいせい)	This means “regeneration” or recycle, but is most commonly used on a DVD deck:“Playback.”!! TTT

再来(さいらい)	Religious word – literal re-incarnation. Sometimes also used in sports – he’s the re-incarnation of Pete Rose!

新生(しんせい)	Doesn’t fit this group. Usually used in politics. The new, improved, reborn communist party. The new, improved whatever.

生かす(いかす)	Can mean a doctor literally bringing a patient back to live i.e. after cardiac arrest. However, it usually means “To make the most out of a limited resource or lucky opportunity.” So, you probably don’t have to worry about confusing 生かす with the other words.

返咲く(かえりざく)	Literally, ‘to bloom a second time’:a revival of a trend or a second-start for a washed-up celeb.