|Easton's Bible Dictionary|
Son of the tongue; i.e., "eloquent", a man of some note who returned from the Captivity with Zerubbabel (Ezra 2:2; Nehemiah 7:7).
Int. Standard Bible Encyclopedia
bil'-shan (bilshan): An Israelite who returned with Zerubbabel (Ezra 2:2 = Nehemiah 7:7). The name may be explained as the "inquirer" (new Hebrew and Aramaic), balash, the ("b" being an abbreviation of ben, as in bidhqar, and bimhal. Bilshan would then be a compound of ben, and lashon. J. Halevy (Revue etudes juives, X, 3)) translates the name "pere de la langue," 'abh lashon. In 1 Esdras 5:8, he is called "Beelsarus," which is akin to the form "Belshar" = "Belshar-uccur" or "O Bel, protect king." Bilshan points to "Belsun," "his lord." The rabbis take Bilshan as a surname to the preceding
Mordecai. H. J. Wolf
Bilshan (2 Occurrences)
Ezra 2:2 who came with Zerubbabel, Jeshua, Nehemiah, Seraiah, Reelaiah, Mordecai, Bilshan, Mispar, Bigvai, Rehum, Baanah. The number of the men of the people of Israel: (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)
Nehemiah 7:7 who came with Zerubbabel, Jeshua, Nehemiah, Azariah, Raamiah, Nahamani, Mordecai, Bilshan, Mispereth, Bigvai, Nehum, Baanah. The number of the men of the people of Israel: (WEB KJV JPS ASV BBE DBY WBS YLT NAS RSV NIV)