different between thunderbolt vs flashoflightning

English

From thunder +? bolt.

thunderbolt (plural thunderbolts)

A flash of lightning accompanied by a crash of thunder.
(figuratively) An event that is terrible, horrific or unexpected.
- the Scipios' worth, those thunderbolts of war
Vehement threatening or censure; especially, ecclesiastical denunciation; fulmination.
- 1627, George Hakewill, Apologie […] of the Power and Providence of God
  a thunder-bolt of warre Striking all Nations
(soccer) A very powerful shot.
(paleontology) A belemnite, or thunderstone.
(heraldry) A charge in the form of two joined bundles with four rays of lightning emerging from them, resembling the thunderbolt of Jupiter.
A daring or irresistible hero.

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