Quick Definition
φρουρέω v. I guard, keep
Strong's Definition
from a compound of 4253 and 3708; to be a watcher in advance, i.e. to mount guard as a sentinel (post spies at gates); figuratively, to hem in, protect
KJV Usage: keep (with a garrison). Compare 5083
UBS Dictionary of the Greek New Testament
verb | ὁράω
37.119 · Control, Rule · Guard, Watch Over
to guard against, to keep under watch, to watch over to be on one’s guard against some eventuality In a number of languages there is a great deal of difference in terminology employed in speaking about guarding an area in order to apprehend someone and guarding a flock of animals for fear of theft from robbers or danger from wild animals.
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Mounce Concise Greek Dictionary
φρουρέω phroureō 4x
to keep watch; trans. to guard, watch, with a military guard, 2 Cor. 11:32; to keep in a condition of restraint, Gal. 3:23; to keep in a state of settlement or security, Phil. 4:7; 1 Pet. 1:5*
Abbott-Smith Greek Lexicon
φρουρέω, -ῶ
(< φρουρός, a guard), [in LXX: I Es 4:56, Jth 3:6, Wi 17:16, I Mac 11:3 * ;]
to guard, keep under guard, protect or keep by guarding: II Co 11:32; metaph., Ga 3:23, Phl 4:7, I Pe 1:5.†
Moulton & Milligan — Vocabulary of the Greek NT
φρουρέω is used literally ‘‘guard,” ‘‘protect,’’ in such passages as P Amb II. 4317 (B.c. 173) where a contract is witnessed by six persons, τῶν ἐν τῆι Σοκνοπαίου Νήσωι φρουρούντων καὶ μισθο(φόρων), ““ belonging to the guard at Socnopaei Nesus and in receipt of pay,” P Bilabel 95 (B.c. 103) τοῖς] ἐν Kpo(kode(Awy) πό(λει) φερομένοις φρου(ροῦσιν), and P Tebt I. 922 {late ii/B.c.) Kepkeooipews τῆς μὴ φρουρουμένης μηδ᾽ οὔσης ἐπὶ τοῦ μεγάλου ποταμοῦ, ‘at Kerkeosiris, which is unguarded and is not situated upon the great river ’’ (Edd.): cf. 2 Cor 118% and Field (Vo/es, p. 186f. See also an important note by E. L. Hicks in CR i. p. 7f.: in the other NT passages (Gal 355, Phil 47, τ Pet 15) he prefers the idea of ‘‘a garrison keeping ward over a town” to the idea of ‘‘soldiers keeping guard either to prevent escape, or to protect the weak.” For φρουρός, cf. P Oxy IX. 11934 (iv/a.D.) ὄνον ἕνα πα[ράσχου] μετὰ Kal ἑνὸς φύλακος τῷ ἀποσταλέντι $p<o>vpa, ‘‘supply one donkey together with one guard to the sentinel whom I have sent” (Ed.): for φρουρά, cf. P Tebt 11. 315% (ii/a.p.) ἔχι yap συστατικὰς [ὅπως τὸν ἀπιθοῦντα μετὰ φρουρᾶς τῷ ἀρχιερῖ πέμπιν, “‘he has instructions to send recalcitrants under guard to the highpriest”? (Edd.): and for φρούριον, cf. P Amh II. 3157 (B.C. 112) περίστασις Tod φρουρίου, “the free space round the guardhouse.” In P Petr I. 2914 (iii/B.c.) τῶν ὅρων apparently applies to the ‘‘ watchers ” of a vineyard, and Mahaffy following Bury regards ὅροι as the word from which φρουροί (προ-οροι) is derived, and compares the Homeric otpos.
Liddell-Scott-Jones — Greek-English Lexicon
φρουρέω (phroureō) — to guard. φρουρ-έω, poetical imperfect φρούρουν [Refs 5th c.BC+]: future -ήσω[Refs 4th c.BC+]: aorist ἐφρούρησα [Refs 5th c.BC+] —middle, future -ήσομαι in passive sense, [Refs 5th c.BC+] —passive, aorist ἐφρουρήθην[Refs]: perfect πεφρούρημαι [Refs 5th c.BC+]: (φρουρός):—keep watch or guard, ἐν Ἐλεφαντίνῃ [Refs 5th c.BC+], etc.; of ships, φ. περὶ Ναύπακτον or ἐν Ναυπάκτῳ, [Refs 5th c.BC+]; φ. ἐπί τινι to keep watch over.., [Refs 5th c.BC+]; οἱ φρουροῦντες the guardians, [Refs 5th c.BC+]; proverbial, ἐν παντὶ.. σκορπίος φ. λίθῳ [Refs 5th c.BC+]; generally, 'keep a sharp look-out', [Refs]
II. transitive, watch, guard, τὴν χώρην [Refs 5th c.BC+]; τὴν Ποτείδαιαν φ. garrison it, [Refs 5th c.BC+]; φυλακαῖσι φ. σῶμ᾽ Ὀδυσσέως set a watch over.. [Refs 5th c.BC+] keep watch over it, of Prometheus, [Refs 4th c.BC+]; στόμα εὔφημον φρουρεῖν ἀγαθόν keep silence, [NT+5th c.BC+]:—passive, to be watched or guarded, [Refs 5th c.BC+]: of the watch kept by besiegers, κύκλῳ φρουρούμενος ὑπὸ πάντων πολεμίων [Refs 5th c.BC+]
II. b hold in subjection, opposed to παραφυλάττειν, [Refs 2nd c.BC+]
II. c Astrology texts, occupy, in passive, [Refs 2nd c.AD+]
II. d bind, ἁλύσεσι πεφρουρημένος [Refs]
II.2. watch for, observe, φρουρῶν τόδ᾽ ἦμαρ [Refs 5th c.BC+]; φ. χρέος to be observant of one's duty, [Refs]
III. middle, to be on one's guard against, beware of, with accusative, φρουρούμενος βέλεμνα [Refs 5th c.BC+]:—active also in the same sense, ἐφρούρει μηδὲν ἐξαμαρτάνειν [Refs]; φ. ὅπως or ὅπως ἂν.., with subjunctive, [Refs 5th c.BC+]; φ. μή.., with subjunctive, [Refs]