Quick Definition
a crevice, cave
Strong's Definition
a hole (as if for light), i.e. cavern; by analogy, a spring (of water)
Derivation: probably from G3700 (ὀπτάνομαι);
KJV Usage: cave, place
Thayer's Greek Lexicon
ὀπή, ὀπῆς, ἡ (perhaps from ὄψ (root ὀπ (see ὁράω); cf. Curtius, § 627)), properly, through which one can see (Pollux (2, 53, p. 179) ὀπή, δἰ ἧς ἐστιν ἰδεῖν, cf. German Luke, Loch (?)), an opening, aperture (used of a window, Son_5:4): of fissures in the earth, Jas_3:11 (Exo_33:22); of caves in rocks or mountains, Heb_11:38 (here R. V. holes); Oba_1:3. (Of various other kinds of holes and openings, in Aristophanes, Aristotle, others.)
Mounce Concise Greek Dictionary
ὀπή opē 2x
a hole; a hole, vent, opening, Jas_3:11 ;
a hole, cavern, Heb_11:38
Abbott-Smith Greek Lexicon
ἀπή , -ῆς , ἡ ,
[in LXX for H2356 , H2288 , etc.;]
an opening, a hole: Jas_3:11 ( cf. Exo_33:22 ), Heb_11:33 ( cf. Oba_1:3 ).†
Liddell-Scott — Intermediate Greek Lexicon
ὀπή ὀπη, ἡ, "an opening, hole", Ar. "a hole in the roof", serving as a chimney, id=Ar.
STEPBible — Tyndale Abridged Greek Lexicon
ὀπή, -ῆς, ἡ
[in LXX for חוֹר, חֲגָו, etc. ;]
an opening, a hole: Jas.3:11 (cf. Exo.33:22), Heb.11:33 (cf. Ob 3).†
(AS)