A primitive root; to mass (an army or servants) -- assemble, fight, perform, muster, wait upon, war.
Englishman's Concordance
1) to go forth, wage war, fight, serve 1a) (Qal) 1a1) to wage war, fight, go forth to war 1a2) to serve (at sacred tent) 1b) (Hiphil) to cause to go forth, muster Part of Speech: verb A Related Word by BDB/Strong’s Number: a primitive root Same Word by TWOT Number: 1865
Brown-Driver-Briggs
[צָבָא] verbwage war, serve (Sabean צֿבאwage war with, also noun army, campaign HomChrest. 125 CISiv. 299, 1. 2 DHMVOJ i.28; Ethiopic ( > ) wage war; Assyrian ƒâbu, man, soldier; NöZMG xl (1886), 726 and others compare (on account of Sabean, Ethiopic ) Arabic conceal oneself, hence lie in wait; this is phonetically suitable, but better in meaning would be go or come forth (against one), etc., so Thes LagBN 21; Frä232 compare young man); —
Exodus 38:8 HEB:נְחֹ֑שֶׁת בְּמַרְאֹת֙ הַצֹּ֣בְאֹ֔ת אֲשֶׁ֣ר צָֽבְא֔וּ NAS: from the mirrors of the serving women who KJV: of the lookingglasses of [the women] assembling, which assembled INT: of bronze the mirrors of the serving who served
Exodus 38:8 HEB:הַצֹּ֣בְאֹ֔ת אֲשֶׁ֣ר צָֽבְא֔וּ פֶּ֖תַח אֹ֥הֶל NAS: women who served at the doorway KJV: of [the women] assembling, which assembled [at] the door INT: of the serving who served the doorway of the tent
Numbers 4:23 HEB:כָּל־ הַבָּא֙ לִצְבֹ֣א צָבָ֔א לַעֲבֹ֥ד NAS: who enter to perform the service KJV: them; all that enter in to perform the service, INT: all enter to perform the service to do
Numbers 8:24 HEB:וָמַ֔עְלָה יָבוֹא֙ לִצְבֹ֣א צָבָ֔א בַּעֲבֹדַ֖ת NAS: they shall enter to perform service KJV: they shall go in to wait upon the service INT: and upward shall enter to perform service the work
Numbers 31:7 HEB: וַֽיִּצְבְּאוּ֙ עַל־ מִדְיָ֔ן NAS:So they made war against Midian, KJV:And they warred against the Midianites, INT:made against Midian
Numbers 31:42 HEB:מִן־ הָאֲנָשִׁ֖ים הַצֹּבְאִֽים׃ NAS: from the men who had gone to war-- KJV: divided from the men that warred, INT: from the men had gone
1 Samuel 2:22 HEB:אֶת־ הַנָּשִׁ֔ים הַצֹּ֣בְא֔וֹת פֶּ֖תַח אֹ֥הֶל NAS: with the women who served at the doorway KJV: with the women that assembled [at] the door INT: with the women served the doorway of the tent
2 Kings 25:19 HEB:שַׂ֣ר הַצָּבָ֔א הַמַּצְבִּ֖א אֶת־ עַ֣ם NAS: of the army who mustered the people KJV: of the host, which mustered the people INT: of the captain of the army mustered the people of the land
Isaiah 29:7 HEB:כָּל־ הַגּוֹיִ֔ם הַצֹּבְאִ֖ים עַל־ אֲרִיאֵ֑ל NAS: the nations who wage war KJV: of all the nations that fight against Ariel, INT: of all the nations wage against Ariel
Isaiah 29:7 HEB:אֲרִיאֵ֑ל וְכָל־ צֹבֶ֙יהָ֙ וּמְצֹ֣דָתָ֔הּ וְהַמְּצִיקִ֖ים NAS: who wage war against INT: Ariel all war stronghold distress
Isaiah 29:8 HEB:כָּל־ הַגּוֹיִ֔ם הַצֹּבְאִ֖ים עַל־ הַ֥ר NAS: the nations will be Who wage war against KJV: of all the nations be, that fight against mount INT: of all the nations wage against Mount
Isaiah 31:4 HEB:יְהוָ֣ה צְבָא֔וֹת לִצְבֹּ֥א עַל־ הַר־ NAS: come down to wage war on Mount KJV: come down to fight for mount INT: will the LORD of hosts to wage over Mount
Jeremiah 52:25 HEB:שַׂ֣ר הַצָּבָ֔א הַמַּצְבִּ֖א אֶת־ עַ֣ם NAS: of the army who mustered the people KJV: of the host, who mustered the people INT: of the commander of the army mustered the people of the land
Zechariah 14:12 HEB:הָ֣עַמִּ֔ים אֲשֶׁ֥ר צָבְא֖וּ עַל־ יְרוּשָׁלִָ֑ם NAS: who have gone to war against KJV: all the people that have fought against Jerusalem; INT: the peoples who have gone against Jerusalem
( > 
) wage war; Assyrian ƒâbu, man, soldier; NöZMG xl (1886), 726 and others compare (on account of Sabean, Ethiopic 
) Arabic 
conceal oneself, hence lie in wait; this is phonetically suitable, but better in meaning would be 
go or come forth (against one), etc., so Thes LagBN 21; Frä232 compare 
young man); —