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Definition:

To destroy something is to completely make an end to it, so that it no longer exists.

The term "destroyer" literally means "person who destroys."
This term is often used in the Old Testament as a general reference to anyone who destroys other people, such as an invading army.
When God sent the angel to kill all the firstborn males in Egypt, that angel was referred to as "the destroyer of the firstborn." This could be translated as "the one (or angel) who killed the firstborn males."
In the book of Revelation about the end times, Satan or some other evil spirit is called "the Destroyer." He is the "one who destroys" because his purpose is to destroy and ruin everything God created.
The word "overthrown" is a metaphor that speaks of a ruler or a great city as if it were a person sitting or standing on a high place whom another person has pushed off of the high place and who is now lying helpless.
To "devote" something to Yahweh often means to completely destroy it, usually by burning it.

Strong's: H6, H7, H8, H622, H398, H1104, H1197, H1760, H1820, H1826, H1942, H2000, H2015, H2026, H2040, H2254, H2255, H2717, H2718, H2763, H2764, H3238, H3341, H3381, H3423, H3582, H3615, H3617, H3772, H3807, H3832, H4191, H4229, H4288, H4591, H4658, H4889, H5218, H5221, H5307, H5362, H5420, H5422, H5428, H5486, H5487, H5595, H5642, H5674, H6365, H6789, H6979, H7665, H7667, H7701, H7703, H7722, H7760, H7843, H7921, H8045, H8074, H8077, H8316, H8552, G355, G396, G622, G853, G684, G1311, G1842, G2049, G2506, G2507, G2647, G2673, G2704, G3089, G3645, G4199, G5351, G5356