Abbott-Smith Manual Greek Lexicon
ἄγγελος (G32)
176 ἄγγελος , -ου, ὁ , [in LXX chiefly for מַלְאָךְ ;] a messenger , one sent: Mt 11:10 , Ja 22:25 . As in LXX, in the special sense of angel , a spiritual, heavenly being, attendant upon God and employed as his messenger to men, to make known his purposes, as Lk 1:11 , or to execute them, as Mt 4:6 . The ἄ. in Re 1:20 2:1 , al., is variously understood as a messenger or delegate, a bishop or ruler, a guardian angel, the prevailing spirit of each church, i.e. the Church itself. (Cf. Swete, Ap )., in l.; DB, iv, 991; Thayer, s.v.; Cremer, 18; MM, VGT , s.v.)
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain