Boyd’s Bible Dictionary:

(mighty). (1) A son of Bukki and father of Zerahiah, in the line of high priests, but never a high priest (1 Chron. 6:5-65And Abishua begat Bukki, and Bukki begat Uzzi, 6And Uzzi begat Zerahiah, and Zerahiah begat Meraioth, (1 Chronicles 6:5‑6); Ezra 7:44The son of Zerahiah, the son of Uzzi, the son of Bukki, (Ezra 7:4)). (2) A son of Tola and grandson of Issachar (1 Chron. 7:2-32And the sons of Tola; Uzzi, and Rephaiah, and Jeriel, and Jahmai, and Jibsam, and Shemuel, heads of their father's house, to wit, of Tola: they were valiant men of might in their generations; whose number was in the days of David two and twenty thousand and six hundred. 3And the sons of Uzzi; Izrahiah: and the sons of Izrahiah; Michael, and Obadiah, and Joel, Ishiah, five: all of them chief men. (1 Chronicles 7:2‑3)). (3) A son of Bela, of the tribe of Benjamin (1 Chron. 7:77And the sons of Bela; Ezbon, and Uzzi, and Uzziel, and Jerimoth, and Iri, five; heads of the house of their fathers, mighty men of valor; and were reckoned by their genealogies twenty and two thousand and thirty and four. (1 Chronicles 7:7)). (4) A Benjamite progenitor of several families settled in Jerusalem after the captivity (1 Chron. 9:8-98And Ibneiah the son of Jeroham, and Elah the son of Uzzi, the son of Michri, and Meshullam the son of Shephathiah, the son of Reuel, the son of Ibnijah; 9And their brethren, according to their generations, nine hundred and fifty and six. All these men were chief of the fathers in the house of their fathers. (1 Chronicles 9:8‑9)). (5) A Levite, son of Bani, and overseer of the Levites at Jerusalem after the captivity (Neh. 11:2222The overseer also of the Levites at Jerusalem was Uzzi the son of Bani, the son of Hashabiah, the son of Mattaniah, the son of Micha. Of the sons of Asaph, the singers were over the business of the house of God. (Nehemiah 11:22)). (6) A priest, and chief of the house of Jedaiah, in the time of the high priest Joiakim (Neh. 12:1919And of Joiarib, Mattenai; of Jedaiah, Uzzi; (Nehemiah 12:19)). (7) A priest who assisted Ezra at the dedication of the walls of Jerusalem (Neh. 12:4242And Maaseiah, and Shemaiah, and Eleazar, and Uzzi, and Jehohanan, and Malchijah, and Elam, and Ezer. And the singers sang loud, with Jezrahiah their overseer. (Nehemiah 12:42)).

Concise Bible Dictionary:

Strong’s Dictionary of Hebrew Words:

from 5810; forceful; Uzzi, the name of six Israelites
KJV Usage:

Jackson’s Dictionary of Scripture Proper Names:

my strength

Potts’ Bible Proper Names:

Of divine strength; my strength; my kid:―name of six Israelites [UZZIAH], 1 Chron. 6:5. {Roburis divini}