Reference: Yale, Valley
Morish
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. emeq, 'valley or plain,' more resembles an English 'valley': it is applied to Achor, Ajalon, Baca, Berachah, Beth-aram, 'of decision' (Joe 3:14); Elah; 'of the giants' (Jos 15:8; 18:16); Gibeon, Hebron, Jehoshaphat, Jezreel, Keziz, 'of the King,' or 'the King's Dale' (Ge 14:17; 2Sa 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' (Zec 14:5); 'of the passengers' (Eze 39:11); 'of salt' (2Sa 8:13; 2Ki 14:7; 1Ch 18:12; 2Ch 25:11; Ps. 60 title); 'of craftsmen' (Ne 11:35); 'of slaughter' (Jer 7:32; 19:6); 'of vision' (Isa 22:1,5); 'of the shadow of death.' (Ps 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.
6. ??????. "Every valley shall be filled, and every mountain and hill shall be brought low," Lu 3:5: a quotation from Isa 40:4, where the Hebrew word is gay.