Matthew 1:20ἄγγελος
But after he had pondered these things, an angel of the Lord appeared to him in a dream and said, “Joseph, son of David, do not be afraid to embrace Mary as your wife, for the One conceived in her is from the Holy Spirit.
Mark 1:13ἄγγελοι
and He was there for forty days, being tempted by Satan. He was with the wild animals, and the angels ministered to Him.
Luke 1:11ἄγγελος
Just then an angel of the Lord appeared to Zechariah, standing at the right side of the altar of incense.
Acts 5:19Ἄγγελος
But during the night an angel of the Lord opened the doors of the jail and brought them out, saying,
Hebrews 1:4ἀγγέλων
So He became as far superior to the angels as the name He has inherited is excellent beyond theirs.
Revelation 1:1ἀγγέλου
This is the revelation of Jesus Christ, which God gave Him to show His servants what must soon come to pass. He made it known by sending His angel to His servant John,

Abbott-Smith

ἄγγελος, -ου, ὁ,
[in LXX chiefly for מַלְאָךְ ;]

1. a messenger, one sent: Mat.11:10, Jas.22:25.

2. 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 Luk.1:11, or to execute them, as Mat.4:6. The ἄ. in Rev.1:20-2:1, al., is variously understood as

(1) a messenger or delegate,

(2) a bishop or ruler,

(3) a guardian angel,

(4) the prevailing spirit of each church, i.e. the Church itself. (Cf. Swete, Ap)., in l.; DB, iv, 991; Thayer, see word; Cremer, 18; MM, VGT, see word)
(AS)

Sources: Abbott-Smith’s Manual Greek Lexicon of the New Testament (1922, public domain) and glosses from STEPBible TBESG (CC BY 4.0); STEPBible TAGNT (Greek New Testament, CC BY 4.0); the Berean Standard Bible (public domain). Reformatted by Word Study, wording unchanged. All sources and licenses.