Quick Definition
I shut, shut up
Strong's Definition
to close (literally or figuratively)
Derivation: a primary verb;
KJV Usage: shut (up)
Thayer's Greek Lexicon
κλείω; future κλείσω, Rev_3:7 L T Tr WH; 1 aorist ἐκλεισα; passive, perfect κεκλεισμαι, participle κεκλεισμένος; 1 aorist ἐκλείσθην; Hebrew ρΘβΗψ; (from Homer down); to shut, shut up; properly: τήν θύραν, Mat_6:6; passive, Mat_25:10; Luk_11:7; plural, Joh_20:19; Joh_20:26; Act_21:30; a prison, passive Act_5:23; πυλῶνας, passive Rev_21:25; τήν ἄβυσσον, Rev_20:3 G L T Tr WH. Metaphorically: τόν οὐρανόν, i. e. to cause the heavens to withhold rain, Luk_4:25; Rev_11:6; τά σπλάγχνα αὐτοῦ ἀπό τίνος, to shut up compassion so that it is like a thing inaccessible to one, to be devoid of pity toward one (Winers Grammar, § 66, 2 d., cf. Buttmann, 322 (277)), 1Jn_3:17; τήν βασιλείαν τῶν οὐρανῶν, to obstruct the entrance into the kingdom of heaven, Mat_23:13 (14); so used that τήν βασιλείαν τοῦ Θεοῦ must be understood, Rev_3:7; τήν θύραν, namely, τῆς βασιλείας τοῦ Θεοῦ, Rev_3:8; cf. Bleek at the passage (Compare: ἀποκλείω, ἐκκλείω, κατακλείω, συγκλείω.)
Mounce Concise Greek Dictionary
κλείω kleiō 16x
to close, shut, Mat_6:6 ; Mat_25:10 ;
to shut up a person, Rev_20:3 ;
met.
of the heavens, Luk_4:25 ; Rev_11:6 ;
κλεῖσαι τὰ σπλάγχνα , to shut one s bowels, to be hard-hearted, void of compassion, 1Jn_3:17 ;
κλείειν τὴν βασιλεία τῶν οὐρανῶν , to endeavor to prevent entrance into the kingdom of heaven, Mat_23:13 shut.
Abbott-Smith Greek Lexicon
κλείω ,
[in LXX chiefly for H5462 ;]
to shut: θύραν , Mat_6:6 ; τ . ἄβυσσον , Rev_20:3 ; pass ., θύρα , Mat_25:10 , Luk_11:7 ( pl .), Joh_20:19 ; Joh_20:26 , Act_21:30 ; δεσμωτήριον , Act_5:23 ; πυλῶνες , Rev_21:25 . Metaph ., τ . οὐρανόν , Luk_4:25 , Rom_11:6 ; τ . σπλάγχνα , 1Jn_3:17 ; τ . βασιλείαν , Mat_23:14 ; id . absol. , Rev_3:7 ; τ . θύραν , Rev_3:8 . ( Cf. ἀπο -, ἐκ -, κατα -, συν -κλείω .) †
Moulton & Milligan — Vocabulary of the Greek NT
κλείω [page 345]
P Lond 44 .16 (B.C. 161) (= I. p. 34) τὴν μὲν θὺραν τοῦ ἱεροῦ προφθάσαντός μου καὶ κλείσαντος , P Par 51 .6 (B.C., 160) (= Selections , p. 19) ὥσπερ κεκλειμ [ένοι ] μου ἦσαν οἱ ὀφθαλμοί μου , BGU IV. 1116 .15 (B.C. 13) τὴν οἰκίαν τεθυρωμένην καὶ τεθυριδωμένην καὶ κ̣ε̣κ̣λ̣ε̣ι̣σ̣μ̣ε̣ν̣ην , P Flor III. 334 .8 (ii/A.D.) καὶ πάλι τῆι σῆι σφραγῖδι ἀσφαλῶς κλείσας σφράγισον τὸ δαπανηθὲν ἀνάλωμα εἰς τοὺς θησαυρούς , Syll 324 .23 (i/B.C.) κλεισθῆναι [δὲ τὰ ἐν τῆι πόλει ἐργαστ ]ήρια . For κλειστός see BGU II. 597 .26 (A.D. 75) μὴ ἀφέτωσα̣ν τὴν θύραν , ἡνίκα κλιστὴ ἦν , and for κλειδόω (MGr κλειδώνω ) see Syll 583 .19 (not before i/A.D.) ναὸς . . τεθυρωμένος καὶ κεκλειδωμένος . An abstract verbal subst. κλεισμός , as in P Oxy XII. 1578 .7 (iii/A.D.), survives in MGr κλείσιμο (for form cf. Thumb Handbook § 104), locking.
STEPBible — Tyndale Abridged Greek Lexicon
κλείω
[in LXX chiefly for סָגַר ;]
to shut: θύραν, Mat.6:6; τ. ἄβυσσον, Rev.20:3; pass., θύρα, Mat.25:10, Luk.11:7 (pl.), Jhn.20:19, 26, Act.21:30; δεσμωτήριον, Act.5:23; πυλῶνες, Rev.21:25. Metaphorical, τ. οὐρανόν, Luk.4:25, Rom.11:6; τ. σπλάγχνα, 1Jn.3:17; τ. βασιλείαν, Mat.23:14; id. absol., Rev.3:7; τ. θύραν, Rev.3:8. (cf. ἀπο-, ἐκ-, κατα-, συν-κλείω.) †
(AS)