106 entries under extra topic. ×

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fee(estimate, calculation, supplement, computation)
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fitting(noun, part, extension)
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fringe benefit(noun, expression, advantage, plus)
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frosting(noun, advantage, plus)
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gift(noun, increase, influence, advantage, say)
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golden parachute(noun, expression, advantage, plus)
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goody(noun, advantage, plus)
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gratuity(noun, advantage, plus)
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gravy(noun, advance, increase, advantage)
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hand-out(noun, advantage, plus)
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honorarium(noun, advantage, plus)
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ice(noun, advantage, plus)
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optional extra(noun, expression, attachment, supplement)
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prize(noun, gain, advantage, achievement)
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pullout(noun, increase, supplement, additive)
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rest(noun, match, balance, foil)
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reward(noun, advantage, plus)
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something added(noun, expression, increase, additive)
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something joined(noun, expression, part, extension)
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special compensation(noun, expression, advantage, plus)
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APASmart Define. (2015). addition thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/addition/thesaurus/synonyms
ChicagoSmart Define. 2015. "addition thesaurus" https://smartdefine.org/addition/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, addition thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/addition/thesaurus/synonyms>.
MLASmart Define. "addition thesaurus" 22 December 2015. Web. 24 September 2026. <https://smartdefine.org/addition/thesaurus/synonyms>