From rachab; width (literally or figuratively) -- breadth, broad, largeness, thickness, wideness.
see HEBREW rachab
H7341. rochab
רֹ֫חַב101 noun [masculine] breadth, width; — ׳ר absolute Ezekiel 42:2 +, construct 1 Kings 6:3 +; suffix רָחְבּוֺ Exodus 25:10 +, בָּהּ- Genesis 6:15 +, רָחְבָּן Ezekiel 42:11; — breadth, of land, + אֹרֶךְ = whole extent, expanse, Genesis 13:17 (J), so ׳ר alone Isaiah 8:8; ׳ר מַיִם Job 37:10; figurative ׳ר לֵב largeness of understanding (like sand of sea-shore) 1 Kings 5:9; breadth, = thickness, of wall גֶּדֶר Ezekiel 42:10; elsewhere only in measurements width, breadth (Deuteronomy 3:11; Kings 10 t.; Ezek 54 t.; Zechariah 2:6; 5:2; P 23 t.; Chronicles 6 t.; "" אֹרֶךְ 1 Kings 7:6 63t., + קוֺמָה 6:2 14t., + גּבַהּ Ezekiel 40:42; 2 Chronicles 3:4; "" קוֺמָה alone 1 Kings 7:27; Ezekiel 40:5): of buildings, etc., 1 Kings 6:2-3,(twice in verse); 6:6 (3 t. in verse) +, Ezekiel 41:1 (3 t. in verse); 41:5, 7 +, altar Exodus 27:1 = 38:1, ark, תֵּבָה, Genesis 6:15, אָרוֺן Exodus 25:10 = 37:1, etc.; of area, the עֶרֶשׂ of Og Deuteronomy 3:11, the תְּרוּמָה of land Ezekiel 45:1, 3, 5, 6 +, of court Exodus 27:12-13, 18; of city Zechariah 2:6; of roll 5:2; of curtain Exodus 26:2, 8 +, etc.; of wall (קִיר), = thickness, Ezekiel 41:9, 12 (compare 42:10 above); of doorway 40:11; 41:2-3, etc.