valley

Boyd’s Bible Dictionary:

Five Hebrew words are rendered vale or valley in the Bible, only one of which seems to imply that broad sweep of land between mountains or hills generally understood by valley
The others imply (1) a narrow ravine, gorge, or glen (Deut. 34:3,63And the south, and the plain of the valley of Jericho, the city of palm trees, unto Zoar. (Deuteronomy 34:3)
6And he buried him in a valley in the land of Moab, over against Beth-peor: but no man knoweth of his sepulchre unto this day. (Deuteronomy 34:6)
); (2) a wady, dry in summer but a torrent in rainy weather; (3) a plain (Josh. 11:8,17; 13:178And the Lord delivered them into the hand of Israel, who smote them, and chased them unto great Zidon, and unto Misrephoth-maim, and unto the valley of Mizpeh eastward; and they smote them, until they left them none remaining. (Joshua 11:8)
17Even from the mount Halak, that goeth up to Seir, even unto Baal-gad in the valley of Lebanon under mount Hermon: and all their kings he took, and smote them, and slew them. (Joshua 11:17)
17Heshbon, and all her cities that are in the plain; Dibon, and Bamoth-baal, and Beth-baal-meon, (Joshua 13:17)
; 2 Chron. 35:2222Nevertheless Josiah would not turn his face from him, but disguised himself, that he might fight with him, and hearkened not unto the words of Necho from the mouth of God, and came to fight in the valley of Megiddo. (2 Chronicles 35:22); Zech. 12:1111In that day shall there be a great mourning in Jerusalem, as the mourning of Hadadrimmon in the valley of Megiddon. (Zechariah 12:11)); (4) a stretch of sloping ground (Deut. 1:77Turn you, and take your journey, and go to the mount of the Amorites, and unto all the places nigh thereunto, in the plain, in the hills, and in the vale, and in the south, and by the sea side, to the land of the Canaanites, and unto Lebanon, unto the great river, the river Euphrates. (Deuteronomy 1:7); Josh. 10:4040So Joshua smote all the country of the hills, and of the south, and of the vale, and of the springs, and all their kings: he left none remaining, but utterly destroyed all that breathed, as the Lord God of Israel commanded. (Joshua 10:40); 1 Kings 10:2727And the king made silver to be in Jerusalem as stones, and cedars made he to be as the sycomore trees that are in the vale, for abundance. (1 Kings 10:27); 2 Chron. 1:1515And the king made silver and gold at Jerusalem as plenteous as stones, and cedar trees made he as the sycomore trees that are in the vale for abundance. (2 Chronicles 1:15); Jer. 33:1313In the cities of the mountains, in the cities of the vale, and in the cities of the south, and in the land of Benjamin, and in the places about Jerusalem, and in the cities of Judah, shall the flocks pass again under the hands of him that telleth them, saith the Lord. (Jeremiah 33:13)).

Concise Bible Dictionary:

There are few places in Palestine which resemble the valleys of other countries. Two of the words translated “valley” are also translated “plain,” and signify broad plains between the hills. Two other words refer to the narrow dales or ravines through which the streams run in winter, but many of which are dry in summer, now called wadys.
The words are
1. biqah, “valley or plain,” which is the word used for the valleys or plains of Aven, Jericho, Lebanon, Megiddo, Mizpeh, and Ono.
2. erneq, “valley or plain,” more resembles an English “valley”: it is applied to Achor, Ajalon, Baca, Berachah, Beth-aram, “of decision” (Joel 3:1414Multitudes, multitudes in the valley of decision: for the day of the Lord is near in the valley of decision. (Joel 3:14)); Elah; of the giants (Josh. 15:88And the border went up by the valley of the son of Hinnom unto the south side of the Jebusite; the same is Jerusalem: and the border went up to the top of the mountain that lieth before the valley of Hinnom westward, which is at the end of the valley of the giants northward: (Joshua 15:8); Josh. 18:1616And the border came down to the end of the mountain that lieth before the valley of the son of Hinnom, and which is in the valley of the giants on the north, and descended to the valley of Hinnom, to the side of Jebusi on the south, and descended to En-rogel, (Joshua 18:16)); Gibeon, Hebron, Jehoshaphat, Jezreel, Keziz, “of the King,” or “the King’s Dale” (Gen. 14:1717And the king of Sodom went out to meet him after his return from the slaughter of Chedorlaomer, and of the kings that were with him, at the valley of Shaveh, which is the king's dale. (Genesis 14:17); 2 Sam. 18:1818Now Absalom in his lifetime had taken and reared up for himself a pillar, which is in the king's dale: for he said, I have no son to keep my name in remembrance: and he called the pillar after his own name: and it is called unto this day, Absalom's place. (2 Samuel 18:18)); Rephaim, Shaveh, Siddim, and Succoth.
3. gay, ge, ravine, narrow glen: applied to Charashim, Hamon-Gog, Hinnom, Son of Hinnom, Jiphthah-el, Zeboim, and Zephathah; and used symbolically for “Valley of the Mountains” (Zech. 14:55And ye shall flee to the valley of the mountains; for the valley of the mountains shall reach unto Azal: yea, ye shall flee, like as ye fled from before the earthquake in the days of Uzziah king of Judah: and the Lord my God shall come, and all the saints with thee. (Zechariah 14:5)); “of the passengers” (Ezek. 39:1111And it shall come to pass in that day, that I will give unto Gog a place there of graves in Israel, the valley of the passengers on the east of the sea: and it shall stop the noses of the passengers: and there shall they bury Gog and all his multitude: and they shall call it The valley of Hamon-gog. (Ezekiel 39:11)); “of salt” (2 Sam. 8:1313And David gat him a name when he returned from smiting of the Syrians in the valley of salt, being eighteen thousand men. (2 Samuel 8:13); 2 Kings 14:77He slew of Edom in the valley of salt ten thousand, and took Selah by war, and called the name of it Joktheel unto this day. (2 Kings 14:7); 1 Chron. 18:1212Moreover Abishai the son of Zeruiah slew of the Edomites in the valley of salt eighteen thousand. (1 Chronicles 18:12); 2 Chron. 25:1111And Amaziah strengthened himself, and led forth his people, and went to the valley of salt, and smote of the children of Seir ten thousand. (2 Chronicles 25:11); Psa. 60 title); “of craftsmen” (Neh. 11:3535Lod, and Ono, the valley of craftsmen. (Nehemiah 11:35)); “of slaughter” (Jer. 7:3232Therefore, behold, the days come, saith the Lord, that it shall no more be called Tophet, nor the valley of the son of Hinnom, but the valley of slaughter: for they shall bury in Tophet, till there be no place. (Jeremiah 7:32); Jer. 19:66Therefore, behold, the days come, saith the Lord, that this place shall no more be called Tophet, nor The valley of the son of Hinnom, but The valley of slaughter. (Jeremiah 19:6)); “of vision” (Isa. 22:1,51The burden of the valley of vision. What aileth thee now, that thou art wholly gone up to the housetops? (Isaiah 22:1)
5For it is a day of trouble, and of treading down, and of perplexity by the Lord God of hosts in the valley of vision, breaking down the walls, and of crying to the mountains. (Isaiah 22:5)
); “of the shadow of death” (Psa. 23:44Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; thy rod and thy staff they comfort me. (Psalm 23:4)).
4. nachal, gorge, wady, often translated “brook” and “river”: the valleys are Eshcol, Gerar, Shittim, Sorek, Zared.
5. shephelah, translated “vale” and “valley,” but not specified by any proper name. It refers to the lowlands that lie midway between the highlands and the low plains of Judah. See CANAAN.
Valley in Sinai

Strong’s Dictionary of Hebrew Words:

Transliteration:
gay’
Phonic:
gah’-ee
Meaning:
or (shortened) gay {gah'-ee}; probably (by transmutation) from the same root as 1466 (abbreviated); a gorge (from its lofty sides; hence, narrow, but not a gully or winter-torrent)
KJV Usage:
valley