Feminine noun · From a derivative of stratos (an army from the base of στρωννύω (G4766), as encamped)
Feminine of a derivative of στρατός stratós (an army; from the base of G4766, as encamped); camp-likeness, i.e. an army, i.e. (figuratively) the angels, the celestial luminaries:—host.
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Strongs concordance