Quick Definition
συμπληρόω v. I fill completely
Strong's Definition
from 4862 and 4137; to implenish completely, i.e. (of space) to swamp (a boat), or (of time) to accomplish (passive, be complete)
KJV Usage: (fully) come, fill up
UBS Dictionary of the Greek New Testament
verb | πληρόω
54.14 · (συμπληρόομαι[a]) · Maritime Activities
to be swamped, to have a boat filling rapidly with water (a technical, nautical term) to be swamped with water while sailing in a boat
67.70 · (συμπληρόομαι[b]) · Time · A Point of Time with Reference to Duration of Time: Beginning, End
to complete, to come to an end to come to the end of a period of time, with the implication of the completion of an implied purpose or plan In a number of languages it may be difficult to speak of a period of time being ‘complete.’ In LUK 1:23 one may often translate as ‘when he had finished his period of service’ or even ‘when he had done his work.’ In the case of ACT 7:30, the expression ‘after forty years were completed’ may be rendered in some languages as ‘after forty years were passed’ or ‘when forty years had happened.’
1 In a number of contexts it is difficult to determine whether the meanings in 67.69 and 67.70 are primarily temporal or aspectual. If the meaning in any one context seems to focus upon the completion of an activity, then the meaning should be classified as aspectual (Domain 68 Aspect), but if the emphasis would seem to be primarily upon the end point of an activity, then one may legitimately classify these meanings as being temporal.
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
συμ-πληρόω [in Acts TWH συν- (ef. σύν, IT. fin.) ], τῶ: Pass., pres. inf. συμπληροῦσθαι ; impf. cvverAnpovuny; fr. Hat. down; 1. to fill completely: συνεπληροῦντο (R. V. they were filling with water], of the navigators, (as sometimes in Grk. writ. what holds of the ship is applied to those on board; ef. Kypke, Observwv. i. p. 248), Lk. viii. 23. 2. to complete entirely, be fulfilled: of time (see πληρόω, 2 Ὁ. a.), pass., Lk. ix. 51 [R. V. well nigh come]; Acts ii. 1.
Mounce Concise Greek Dictionary
συμπληρόω symplēroō 3x
to fill, fill up, Lk. 8:23; pass., of time, to be completed, have fully come, Lk. 9:51; Acts 2:1*
Abbott-Smith Greek Lexicon
συν-πληρόω
(Rec. συμπ-), -ῶ, [in LXX: Je 25:12 (מָלֵא) * ;]
to fill up completely (Thuc., of manning ships): of a ship filling with water, and by meton., of those on board, Lk 8:23.
to complete, fulfil: of time (Je, l.c., and v. MM, xxiv), Lk 9:51, Ac 2:1 (on the "durative inf.," v. M, Pr., 233).†
Moulton & Milligan — Vocabulary of the Greek NT
συνπληρόω. (1) For the Lukan usage (951, Ac 21) ‘‘ complete,” “fulfil,” with reference to time, cf. BGU IV. 1122? (B.c. 13) ἐπὶ δὲ τοῦ συνπληρω(θῆναι) τοῦτον (sc. χρόνον), and the corresponding use of the subst. in P Grenf II. 337 (B.c. 100) eis συμπλήρωισιν ἐτ[ῶν πέν]τε, P Giss I. 5622 (vi/a.p.) πρὸ συμπληρώ(σεως) το(ῦ) αὐτ(οῦ) Sexace>rots [χρόνου : cf. P Oxy XIV. 16261 (Α.Ὁ. 325) τὰ δὲ φανησόμενα ἄχρι συνπληρώσεως τῆς ἐπιμελείας ἀπολήμψεται παρὰ τῶν αὐτῶν δεκανῶν, ‘‘and shall receive from the said αἰδεαϑὶ
Liddell-Scott-Jones — Greek-English Lexicon
συμπληρόω (sumplēroō) — to (ful)fill. συμπληρ-όω, help to fill, σ. τοῖσι Ἀθηναίοισι τὰς νέας help them in manning.. , [Refs 5th c.BC+]
II. fill up or completely, ἑξήκοντα ναῦς man them fully, [Refs 5th c.BC+]; τὸν μεταξὺ τόπον, τὸ μ., [Refs 5th c.BC+]:—middle, σ. τὰ διαστήματα [Refs 5th c.BC+]:—passive, τὸ δὲ [τῆς σύριγγος] πάλιν ξυμπληρωθείη [Refs 5th c.BC+]
II. b in Medicine texts, cause congestion of, τὰ ὑποθυμιάματα σ. τὴν κεφαλήν [Refs 2nd c.AD+]:—passive, suffer from congestion of the brain, [Refs 2nd c.AD+]
II.2. complete, τὸ ὅλον [Refs 4th c.BC+]; τὰ συμπληροῦντα τὴν ἀρίστην μαῖαν the qualities which make up the complete good midwife, [Refs 2nd c.AD+] —passive, [δένδρα] συμπεπληρωμένα πᾶσι τοῖς οἰκείοις μορίοις, opposed to ἀρχόμενα φύεσθαι, [Refs 2nd c.AD+]
II.3. fulfil, attain, τὸ τῆς φύσεως τέλος [Refs 3rd c.BC+]:—middle, τὸ τῆς ψυχῆς καὶ τοῦ σώματος ἀγαθόν [Refs 4th c.BC+] —passive, [Refs]
II.4. finish, περὶ τοῦ λίαν ὀξέος ὀξυμέλιτος συμπληρώσας τὸν λόγον [Refs 2nd c.AD+]