This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. One who performs or carries out, especially a skilled performer: The dancer is the choreographer's executant.

n. A person who executes a dance or piece of music; a performer

n. One who executes or performs; esp., a performer on a musical instrument.

n. One who executes or performs; specifically, in music, a performer, whether vocal or instrumental.

n. a performer (usually of musical works)

"Christmas were somewhat as follows: From the manor-house ten shillings and a supper; from the vicar ten shillings; from the farmers five shillings each; from each cottage-household one shilling; amounting altogether to not more than ten shillings a head annually — just enough, as an old executant told me, to pay for their fiddle-strings, repairs, rosin, and music-paper"

performer    performing artist   

fourth    father-confessor    trustor    bosom-friend    cannoneer