Bible dictionaries
Bigthan
What Bible dictionaries say about “Bigthan”, one article after the other.
Easton’s Bible Dictionary & Webster’s 1828 Dictionary
Bigthan - (Easton's Bible Dictionary)
One of the eunuchs who "kept the door" in the court of Ahasuerus. With Teresh he conspired against the king's life. Mordecai detected the conspiracy, and the culprits were hanged (Esther 2:21-23; 6:1-3).
Matthew George Easton, Easton’s Bible Dictionary; Noah Webster, American Dictionary of the English Language (1828)
The article in Easton + Webster 1828International Standard Bible Encyclopedia (ISBE 1915)
big'-than big-tha'-na (bighethan, bighethana'; Septuagint omits name): One of the two chamberlains or eunuchs of Xerxes on ("Ahasuerus") who conspired against the king's life, the conspiracy being detected by Mordecai and the culprits hanged (Es 2:21). Possibly these men had been partially superseded by the degradation of Vashti and were thus prompted to take revenge Xerxes.
International Standard Bible Encyclopedia — James Orr, general editor and contributors; CrossWire SWORD module ISBE 2.2
The article in ISBE 1915Smith’s Bible Dictionary
William Smith; revised by F. N. Peloubet and M. A. Peloubet; CrossWire SWORD module Smith 1.3
The article in Smith