| accentor | (noun) small sparrow-like songbird of mountainous regions of Eurasia | - |
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| cantor | (noun) the official of a synagogue who conducts the liturgical part of the service and sings or chants the prayers intended to be performed as solos | Synonyms: hazan |
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| (noun) the musical director of a choir | Synonyms: choirmaster, precentor |
| grantor | (noun) a person who makes a grant in legal form | - |
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| guarantor | (noun) one who provides a warrant or guarantee to another | Synonyms: surety, warranter, warrantor |
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| inventor | (noun) someone who is the first to think of or make something | Synonyms: artificer, discoverer |
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| mentor | (noun) a wise and trusted guide and advisor | Synonyms: wise man |
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| precentor | (noun) the musical director of a choir | Synonyms: cantor, choirmaster |
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| stentor | (noun) any of several trumpet-shaped ciliate protozoans that are members of the genus Stentor | - |
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| (noun) a speaker with an unusually loud voice | - |
| tormentor | (noun) a flat at each side of the stage to prevent the audience from seeing into the wings | Synonyms: teaser, tormenter |
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| (noun) someone who torments | Synonyms: persecutor, tormenter |
| warrantor | (noun) one who provides a warrant or guarantee to another | Synonyms: guarantor, surety, warranter |
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