Borrowing from Latin -tiōne, ablative of -tiō as a learned form (or from -tiōnem, the accusative). The original inherited form of the suffix, -zón or -són, is today less common but found in words such as razón, sazón, tesón, quemazón, comezón, hinchazón, etc.
- (Castilian) IPA(key): [ˈθjo̞n]
- (Latin America) IPA(key): [ˈsjo̞n] (always stressed in the last syllable)
-ción f (plural -ciones)
- Used in forming a noun to represent the property corresponding to a verb; -tion.