Drop dead and Die unexpectedly

Drop dead verb - Pass from physical life and lose all bodily attributes and functions necessary to sustain life.

Die unexpectedly and drop dead are semantically related. in die topic. In some cases you can use "Die unexpectedly" instead a verb phrase "Drop dead".

Drop dead and die unexpectedly are semantically related. Sometimes you can replace phrase "Drop dead" with "Die unexpectedly", this phrases are similar.