Definition of plain:

• Heb. ' elon ( Genesis 12:6 ; 13:18 ; 14:13 ; 18:1 ; Deuteronomy 11:30 ; Judges 9:6 ), more correctly " oak," as in the Revised Version; margin, " terebinth."
• Heb. bik'ah ( Genesis 11:2 ; Nehemiah 6:2 ; Ezekiel 3:23 ; Daniel 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."
• Heb. kikar, " the circle," used only of the Ghor, or the low ground along the Jordan ( Genesis 13:10-12 ; Genesis 19:17 Genesis 19:25 Genesis 19:28 Genesis 19:29 ; Deuteronomy 34:3 ; 2 Sam 18:23 ; 1 Kings 7:46 ; 2 Chr 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.
• Heb. mishor, " level ground," smooth, grassy table-land ( Deuteronomy 3:10 ; 4:43 ; Joshua 13:9 Joshua 13:16 Joshua 13:17 Joshua 13:21 ; 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.
• Heb. ' 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.
• Heb. 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 Chr 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 .) These dictionary topics are fromM.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition,published by Thomas Nelson, 1897. Public Domain, copy freely.Bibliography InformationEaston, Matthew George. " Entry for Plain". " Easton's Bible Dictionary". .
• To lament; to mourn over; as, to plain a loss.
• To lament; to bewail; to complain.
• express complaints, discontent, displeasure, or unhappiness; " My mother complains all day"; " She has a lot to kick about"
• To plane or level; to make plain or even on the surface.
• To make plain or manifest; to explain.
• Without elevations or depressions; flat; level; smooth; even. See Plane.
• Open; clear; unencumbered; equal; fair.
• Not intricate or difficult; evident; manifest; obvious; clear; unmistakable.
• Void of extraneous beauty or ornament; without conspicious embellishment; not rich; simple.
• Not highly cultivated; unsophisticated; free from show or pretension; simple; natural; homely; common.
• Free from affectation or disguise; candid; sincere; artless; honest; frank.
• Not luxurious; not highly seasoned; simple; as, plain food.
• Without beauty; not handsome; homely; as, a plain woman.
• Not variegated, dyed, or figured; as, plain muslin.
• Not much varied by modulations; as, a plain tune.
• a basic knitting stitch
• Level land; any flat expanse.
• Plainness.
• Plain level land: any flat expanse: an open field.
• Level land.
• Level land or open field.
• Level land; a flat expanse- extensive plains in Asia are called steppes, in Africa, deserts, in S. Amer., pampas and llanos, in N. Amer., prairies and savannahs.
• unmistakably; " the answer is obviously wrong"; " she was in bed and evidently in great pain"; " he was manifestly too important to leave off the guest list"; " it is all patently nonsense"; " she has apparently been living here for some time"; " I thought he owned the property, but apparently not"; " You are plainly wrong"; (` plain' is often used informally for ` plainly' as in" he is plain stubborn")
• In a plain manner; plainly.
• Clearly.
• Plainly.
• Honestly: distinctly.
• Not obscurely; artlessly.
• Not obscurely; distinctly.
• lacking in physical beauty or proportion; " a homely child"; " several of the buildings were downright homely"; " a plain girl with a freckled face"
• lacking stylistic embellishment; " a literal description"; " wrote good but plain prose"; " a plain unadorned account of the coronation"; " a forthright unembellished style"
• lacking embellishment or ornamentation; " a plain hair style"; " unembellished white walls"; " functional architecture featuring stark unornamented concrete"
• free from any effort to soften to disguise; " the plain and unvarnished truth"; " the unvarnished candor of old people and children"
• comprehensible to the general public; " written for the popular press in plain nontechnical language"
• not elaborate or elaborated; simple; " plain food"; " stuck to the plain facts"; " a plain blue suit"; " a plain rectangular brick building"
• 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.
• A field of battle.
• Level; flat; even; smooth; clear; evident; as, in plain sight; easily understood; as, plain talk; unlearned; unpolished; simple in manners; as, a plain man; not luxurious; as, plain living; without ornament; as, plain furniture; without beauty; homely; as, a plain face.
• A more or less smooth and level area.
• Even: flat: level: smooth: simple: homely: artless: sincere: evident: mere: not colored or figured.
• Level; simple; homely; clear; mere; not figured or gay.
• Flat; smooth; easy; readily understood.
• Lowly; unlearned; unadorned; unpretending; simple.
• Lacking personal beauty.
• Smooth; level: open; void of ornament; artless; simple; unaffected; undisguised; sincere; clear; easily seen or discovered; not difficult; not rich.
• Without ornament or embellishment; homely; artless; frank; sincere; candid; easily understood; not difficult; clear; not luxurious, as in food; smooth, level, or flat.

Usage examples for plain

1. You're from the Old Country- that's plain enough.  The Greater Power by Harold Bindloss W. Herbert Dunton

2. But before I speak of that I must go on and make plain what her purpose came finally to be.  The Way of the Gods by John Luther Long

3. They made it rather plain, in fact.  His Family by Ernest Poole

4. You're saying so is plain enough.  The Heart of the Range by William Patterson White