4 occurrences in 4 dictionaries
Reference: Butler
Easton
properly a servant in charge of the wine (Ge 40:1-13; 41:9). The Hebrew word, mashkeh, thus translated is rendered also (plural) "cup-bearers" (1Ki 10:5; 2Ch 9:4). Nehemiah (Ne 1:11) was cup-bearer to king Artaxerxes. It was a position of great responsibility and honour in royal households.
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Hastings
Morish
An officer of great importance in Oriental courts: he presented the drinking cup to the king. Ge 40. Nehemiah held the office at Shushan, and was highly esteemed by the king. Ne 2:1.
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Smith
Butler.
One of the officers of the king's household,
who had charge of the wine and poured it out for the king. The chief butler, as the title signifies, was in charge of the butlers.