Matthew 5:25φυλακὴν
Reconcile quickly with your adversary, while you are still on the way to court. Otherwise, he may hand you over to the judge, and the judge may hand you over to the officer, and you may be thrown into prison.
Mark 6:17φυλακῇ
For Herod himself had ordered that John be arrested and bound and imprisoned, on account of his brother Philip’s wife Herodias, whom Herod had married.
Luke 2:8φυλακὰς
And there were shepherds residing in the fields nearby, keeping watch over their flocks by night.
Acts 5:19φυλακῆς
But during the night an angel of the Lord opened the doors of the jail and brought them out, saying,
2 Corinthians 6:5φυλακαῖς
in beatings, imprisonments, and riots; in labor, sleepless nights, and hunger;
Revelation 2:10φυλακὴν
Do not fear what you are about to suffer. Behold, the devil is about to throw some of you into prison to test you, and you will suffer tribulation for ten days. Be faithful even unto death, and I will give you the crown of life.

Abbott-Smith

φυλακή, -ῆς, ἡ
(φυλάσσω) [in LXX chiefly for מִשְׁמֶרֶת and cogn. forms, also for כֶּלֶא etc. ;]

(a) actively, a guarding, guard, watch (Hom., Plat., Xen., al.): cogn. accusative, φυλάσσειν φυλακάς, to keep watch, Luk.2:8;

(b) of those who keep watch (as also Lat. custodia), a guard; pl., sentinels, a guard (Hom., al.): Act.12:10;

(with) of the place where persons are kept under guard, a prison (Hdt., Thuc., al.): Mat.14:10, Mrk.6:17, Luk.3:20, Act.5:19, 2Co.6:5, 1Pe.3:19, Rev.18:2, al.;

(d) of the time during which guard was kept by night (Lest. vigilia; Anthol.), a watch: Mat.14:25 24:43, Mrk.6:48, Luk.12:38
(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.