Search Result for "countess": 
Wordnet 3.0

NOUN (1)

1. female equivalent of a count or earl;


The Collaborative International Dictionary of English v.0.48:

Countess \Count"ess\ (kount"?s), n.; pl. Countesses (-?s). [F. comtesse. See Count a nobleman.] The wife of an earl in the British peerage, or of a count in the Continental nobility; also, a lady possessed of the same dignity in her own right. See the Note under Count. [1913 Webster] Countinghouse
WordNet (r) 3.0 (2006):

countess n 1: female equivalent of a count or earl