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Vine's Expository Dictionary of NT Words [1]

1: Ὅπλον (Strong'S #3696 — Noun Neuter — hoplon — hop'-lon )

"a tool, instrument, weapon," is used metaphorically in  Romans 6:13 of the members of the body as "instruments" (marg., "weapons"), negatively, of unrighteousness, positively, of righteousness. The metaphor is probably military (cp. ver. 23, "wages," i.e., soldiers' pay); Moule renders it "implements;" "weapons" seems to be the meaning. See Armor , Weapons.

Hawker's Poor Man's Concordance And Dictionary [2]

See Music