Singular to Plural – The ending -is is changed to -es (List)

  • Basis – Bases
  • Thesis – Theses
  • Analysis – Analyses
  • Hypnosis – Hypnoses
  • Oasis – Oases
  • Ellipsis – Ellipses
  • Crisis – Crises
  • Diagnosis – Diagnoses
  • Prognosis – Prognoses
  • Paralysis – Paralyses
  • Metropolis – Metropolises
  • Annexis – Annexes
  • Emphasis – Emphases
  • Ametis – Ametes
  • Nemesis – Nemeses
  • Analysis – Analyses
  • Genesis – Geneses
  • Pyxis – Pyxes
  • Synopsis – Synopses
  • Thermopsis – Thermopses
  • Clysis – Clyses
  • Physis – Physes
  • Hydranthesis – Hydrantheses
  • Acropolis – Acropolises
  • Apothesis – Apotheses
  • Hermesis – Hermeses
  • Stasis – Stases
  • Exegesis – Exegeses
  • Ptenisis – Ptenises
  • Biosis – Bioses
  • Tropisis – Tropises
  • Genisis – Genesis
  • Symbiosis – Symbioses
  • Thesis – Theses
  • Crisis – Crises
  • Hypnosis – Hypnoses
  • Oasis – Oases
  • Prognosis – Prognoses
  • Polisis – Polises
  • Aluminosis – Aluminoses
  • Asbestosis – Asbestoses
  • Berylliosis – Beryllioses
  • Analysis – Analyses
  • Atmosis – Atmosses
  • Calixis – Calixes
  • Phosis – Phoses
  • Endometriosis – Endometrioses
  • Echolalia – Echolalies
  • Ellipsis – Ellipses
  • Silicosis – Silicoses
  • Acaridomatosis – Acaridomatoses
  • Amelogenesis – Amelogeneses
  • Anastomosis – Anastomoses