27 Moby Thesaurus words for "special case":
   allowance, cession, circumscription, concession, definiteness,
   exception, exemption, extenuating circumstances, grain of salt,
   grant, hedge, hedging, limitation, mental reservation,
   modification, qualification, reservation, restriction, salvo,
   special treatment, speciality, specialness, specialty,
   specificality, specification, specificness, waiver