There are 5 causes- natural, accident, homicide, suicide, undetermined
There are 2 types- individual death and extinction (death of an entire species)
And there are two versions: someone is dead when either the heart stops beating for a certain length of time or the brain loses all it's function (brain death)
Death is described at Romans 5:14 as a “king” ruling over people from the time of Adam; it rules along with another “king,” sin. (Ro 6:12) These kings figuratively enforce their “law,” or strong influence, over mankind in that inherited imperfection causes humans to sin, which brings death. (Ro 7:23; see study note on Ro 8:2.) With Christ’s coming to earth and the provision of the ransom, undeserved kindness began exercising a superior kingship over those accepting God’s gift, “leading to everlasting life.”—Ro 5:15-17, 21.
God will soon eliminate death. (Revelation 21:4)