Quick Definition
ἄμμος, ου, ἡ n.f. sand
Strong's Definition
perhaps from 260; sand (as heaped on the beach)
KJV Usage: sand
UBS Dictionary of the Greek New Testament
noun, f. | -ου
2.28 · Natural Substances · Earth, Mud, Sand, Rock
sand ἄμμος[a] is primarily used in the NT in a figurative sense referring to things which cannot be counted. In such contexts, therefore, what is important is the abundance of sand and not its particular occurrence beside the sea. Therefore, in many contexts it is possible to say ‘as numerous as the grains of sand.’ In this way one need not specify the particular location if the meaning of innumerable quantity is fully evident.
In some areas of the world there is little or no sand, and therefore it may be necessary to render sand in MAT 7:26 as ‘loose soil’ or ‘unpacked dirt.’
1.64 · Geographical Objects and Features · Land in Contrast With the Sea
beach a sandy beach or shore ἄμμος[b] evidently involves a particular type of αἰγιαλός (1.63) which is sandy. For languages spoken by persons living along a seacoast, there are usually few if any problems involved in distinguishing various types of land bordering the sea, but for persons living in inland areas, it may be necessary to employ a descriptive phrase such as land along the sea and use such a phrase for various occurrences of different terms.
1 REV 12:18 It would be possible to regard ἡ ἄμμος τῆς θαλάσσης, literally ‘the sand of the sea,’ as a type of idiom meaning beach. Compare, for example, the meaning of ἄμμος[a] (2.28).
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ἄμμος, -ov, ἡ, sand; ace. to a Hebr. comparison ἄμ. τῆς θαλάσσης and ἄμ. παρὰ τὸ χεῖλος τῆς Gad. are used for an innumerable multitude, Ro. ix. 27; Heb. xi. 12; Rev. xx. 8, equiv. to xii. 18 (xiii. 1). Ace. to the context sandy ground, Mt. vii. 26. (Xen., Plat., Theophr. often, Plut., Sept. often.)
Mounce Concise Greek Dictionary
ἄμμος ammos 5x
sand, Mt. 7:26; Rom. 9:27; Heb. 11:12; Rev. 12:18, 20*
Abbott-Smith Greek Lexicon
ἄμμος, -ου, ἡ,
[in LXX chiefly for חוֹל;]
sand, sandy ground: Mt 7:26, Ro 9:27, He 11:12, Re 18:1, Re 20:8.†
Moulton & Milligan — Vocabulary of the Greek NT
ἄμμος. P Petr II. 4 (9)° (iii/B.c.) ὥστε ἀνακαθᾶραι τὴν ἄμμον, 26. III. 43 (2) recto ti. 15 (2nd year of Euergetes I.) ἐργάσασθαι τὴν ἄμμον τοῦ ὑδραγωγοῦ ἐπὶ τῆς κατὰ ᾿Ηφαιστιάδα διώρυγος, “to clear out the sand from the water-course of the canal near Hephaistias,’ BGU II. 530% (i/a.p.) (= Selections, p. 61) ὃ ὑδραγωγὸς συνεχώσθη ὑπὸ τῆς ἄμμου, ‘‘ the water-course was choked with sand,” P Tebt II. 34277 (late ii/a.D.) els ἐκσκαφὴν xods... kal ἄμμου, P Flor Il. 157° (iii/A.D.) els t[0] ἔργον ἐκεῖνο Td τῆς Θεω[ξ]ενίδος, τούτεστιν Td τῆς ἄμμου. From the inscriptions it is sufficient to cite Sy// 587187 (iv/B.c.) ἄμμον ἀγωγαὶ πέντε. In BGU I. 108! (a.p. 203-4) (= Chrest. 1. 227) Wilcken reads ἀμμόχοστος (/. ἀμμόχωστος), ‘covered with sand,” with reference to a plot of land, and compares the similar use of ὕφαμμος in P Amh II. 85}8 (a.p. 78). > Ἢ αμπελων
Liddell-Scott-Jones — Greek-English Lexicon
ἄμμος (ammos) — sand. ἄμμος, or ἅμμος (compare ὕφ-αμμος), ἡ, __A sand, [Refs 5th c.BC+] __A.II sandy ground, racecourse, [Refs 5th c.BC+]