Easton's Bible Dictionary
May be simply defined as the termination of life. It is represented under a variety of aspects in Scripture:
(1.) "The dust shall return to the earth as it was" (Ecclesiastes 12:7).
(2.) "Thou takest away their breath, they die" (Psalm 104:29).
(4.) Being "unclothed" (2 Corinthians 5:3, 4).
Death is the effect of sin (Hebrews 2:14), and not a "debt of nature." It is but once (9:27), universal (Genesis 3:19), necessary (Luke 2:28-30). Jesus has by his own death taken away its sting for all his followers (1 Corinthians 15:55-57).
THE DEATH OF CHRIST is the procuring cause incidentally of all the blessings men enjoy on earth. But specially it is the procuring cause of the actual salvation of all his people, together with all the means that lead thereto. It does not make their salvation merely possible, but certain (Matthew 18:11; Romans 5:10; 2 Corinthians 5:21; Galatians 1:4; 3:13; Ephesians 1:7; 2:16; Romans 8:32-35).
Noah Webster's New International Dictionary of the English Language
1. (n.) The cessation of all vital phenomena without capability of resuscitation, either in animals or plants.
2. (v. i.) Total privation or loss; extinction; cessation; as, the death of memory.
3. (v. i.) Manner of dying; act or state of passing from life.
4. (v. i.) Cause of loss of life.
5. (v. i.) Personified: The destroyer of life, -- conventionally represented as a skeleton with a scythe.
6. (v. i.) Danger of death.
7. (v. i.) Murder; murderous character.
8. (v. i.) Loss of spiritual life.
9. (v. i.) Anything so dreadful as to be like death.