Quick Definition
εὐκαιρία, ας, ἡ n.f. a convenient time, opportunity
Strong's Definition
from 2121; a favorable occasion
KJV Usage: opportunity
UBS Dictionary of the Greek New Testament
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
εὐκαιρία, -as, 7, (εὔκαιρος), seasonable time, opportunity : ζητεῖν e€vk., foll. by [ἵνα B. 237 (205) ], Mt. xxvi. 16; (Lk. xxii. 6 Lehm. mrg.]; by rod with inf. Lk. xxii. 6. (Sept.; in Grk. writ. first in Plat. Phaedr. p. 272 a.)
Mounce Concise Greek Dictionary
εὐκαιρία eukairia 2x
convenient opportunity, favorable occasion, Mt. 26:16; Lk. 22:6*
Abbott-Smith Greek Lexicon
εὐκαιρία, -ας, ἡ
(< εὔκαιρος), [in LXX: Ps 9:10 (v. Soph., Lex., s.v.) 9:22 (10:1) 144 (145):15 (עֵת), Si 38:24, I Mac 11:42 * ;]
fitting time, opportunity: seq. ἵνα, Mt 26:16; τοῦ, c. inf., Lk 22:6.†
Moulton & Milligan — Vocabulary of the Greek NT
εὐκαιρία is found, as in Mt 2615, Lk 225, in BGU II. 665%. 4 (1,4.}.) εὐκαι[ρί]αν δὲ οὐκ ἔχει, 75. 1. 4618 (A.D. 193) ἐὰν εὐκαιρίας τύχω τοῦ εὑρεῖν, ἀποσπάσω, P Oxy I. 123 (iii/iv. Α.}.) εὐκαιρη (1 --ἰ(α) τὶς καὶ νῦν τοῦ ἀνερχομένου πρὸς ὑμᾶς, zb. X. 1300? (v/A.D.) εὐκερίαν εὑρὼν διὰ τοῦτον (1. εὐκαιρίαν εὗρον 81a τούτων) μου τῶν γραμμάτων τὰ πολλὰ προσαγορεῦσαί σε. The word is MGr.
Liddell-Scott-Jones — Greek-English Lexicon
εὐκαιρία (eukairia) — opportunity. εὐκαιρ-ία, Ionic dialect -ιη, ἡ, good season, opportunity, τὴν εὐ. διαφυλάττειν [Refs 5th c.BC+]; ἀπολαύειν τῆς εὐ. [Refs 1st c.BC+]; εὐκαιρίαν ζητεῖν ἵνα.. [NT]; εὐ. τοῦ ἐλθεῖν [Refs 2nd c.AD+]; leisure, [Refs 5th c.BC+]—a usage condemned by [Refs 9th c.AD+]
II. appropriateness, opposed to ἀκαιρία, [Refs 5th c.BC+]; μεταφορᾶς, στίχων, [Refs 1st c.AD+]
II.2. convenient situation, τῶν πόλεων [Refs 2nd c.BC+]
II.3. opportune supply, ὑδάτων, of rainfall or irrigation, [Refs 4th c.BC+]
III. wealth, prosperity, αἱ τῶν βίων εὐ. [Refs 2nd c.BC+]; εὐ. οὐκ ἔχει he has no property, [Refs 1st c.AD+]