Easton's Bible Dictionary
(1.) Hebrews `abel (Judges 11:33), a "grassy plain" or "meadow." Instead of "plains of the vineyards," as in the Authorized Version, the Revised Version has "Abel-cheramim" (q.v.), comp. Judges 11:22; 2 Chronicles 16:4.
(3.) Hebrews bik'ah (Genesis 11:2; Nehemiah 6:2; Ezek. 3:23; Dan. 3:1), properly a valley, as rendered in Isaiah 40:4, a broad plain between mountains. In Amos 1:5 the margin of Authorized Version has "Bikathaven."
(4.) Hebrews kikar, "the circle," used only of the Ghor, or the low ground along the Jordan (Genesis 13:10-12; 19:17, 25, 28, 29; Deuteronomy 34:3; 2 Samuel 18:23; 1 Kings 7:46; 2 Chronicles 4:17; Nehemiah 3:22; 12:28), the floor of the valley through which it flows. This name is applied to the Jordan valley as far north as Succoth.
(5.) Hebrews mishor, "level ground," smooth, grassy table-land (Deuteronomy 3:10; 4:43; Joshua 13:9, 16, 17, 21; 20:8; Jeremiah 48:21), an expanse of rolling downs without rock or stone. In these passages, with the article prefixed, it denotes the plain in the tribe of Reuben. In 2 Chronicles 26:10 the plain of Judah is meant. Jerusalem is called "the rock of the plain" in Jeremiah 21:13, because the hills on which it is built rise high above the plain.
(6.) Hebrews `arabah, the valley from the Sea of Galilee southward to the Dead Sea (the "sea of the plain, " 2 Kings 14:25; Deuteronomy 1:1; 2:8), a distance of about 70 miles. It is called by the modern Arabs the Ghor. This Hebrew name is found in Authorized Version (Joshua 18:18), and is uniformly used in the Revised Version. Down through the centre of this plain is a ravine, from 200 to 300 yards wide, and from 50 to 100 feet deep, through which the Jordan flows in a winding course. This ravine is called the "lower plain."
The name Arabah is also applied to the whole Jordan valley from Mount Hermon to the eastern branch of the Red Sea, a distance of about 200 miles, as well as to that portion of the valley which stretches from the Sea of Galilee to the same branch of the Red Sea, i.e., to the Gulf of Akabah about 100 miles in all.
(7.) Hebrews shephelah, "low ground," "low hill-land," rendered "vale" or "valley" in Authorized Version (Joshua 9:1; 10:40; 11:2; 12:8; Judges 1:9; 1 Kings 10:27). In Authorized Version (1 Chronicles 27:28; 2 Chronicles 26:10) it is also rendered "low country." In Jeremiah 17:26, Obadiah 1:19, Zechariah 7:7, "plain." The Revised Version renders it uniformly "low land." When it is preceded by the article, as in Deuteronomy 1:7, Joshua 11:16; 15:33, Jeremiah 32:44; 33:13, Zechariah 7:7, "the shephelah," it denotes the plain along the Mediterranean from Joppa to Gaza, "the plain of the Philistines." (see VALLEY.)
Plain of Mamre
Noah Webster's New International Dictionary of the English Language
1. (v. i.) To lament; to bewail; to complain.
2. (v. t.) To lament; to mourn over; as, to plain a loss.
3. (superl.) Without elevations or depressions; flat; level; smooth; even. See Plane.
4. (superl.) Open; clear; unencumbered; equal; fair.
5. (superl.) Not intricate or difficult; evident; manifest; obvious; clear; unmistakable.
6. (superl.) Void of extraneous beauty or ornament; without conspicuous embellishment; not rich; simple.
7. (superl.) Not highly cultivated; unsophisticated; free from show or pretension; simple; natural; homely; common.
8. (superl.) Free from affectation or disguise; candid; sincere; artless; honest; frank.
9. (superl.) Not luxurious; not highly seasoned; simple; as, plain food.
10. (superl.) Without beauty; not handsome; homely; as, a plain woman.
11. (superl.) Not variegated, dyed, or figured; as, plain muslin.
12. (superl.) Not much varied by modulations; as, a plain tune.
13. (adv.) In a plain manner; plainly.
14. (a.) Level land; usually, an open field or a broad stretch of land with an even surface, or a surface little varied by inequalities; as, the plain of Jordan; the American plains, or prairies.
15. (n.) A field of battle.
16. (v.) To plane or level; to make plain or even on the surface.
17. (v.) To make plain or manifest; to explain.