-ción

Borrowed from Latin -tiōne, ablative of -tiō as a learned form (or from -tiōnem, the accusative).

-ción f (plural -cións)

1. Used in forming a noun to represent the property corresponding to a verb; -tion.

   ‎militarizar (“to militarize”) + ‎-ción → ‎militarización (“militarization”)

• -ación

Borrowed 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.

• IPA^(key): (Spain) /ˈθjon/ [ˈθjõn]
• IPA^(key): (Latin America) /ˈsjon/ [ˈsjõn]
• Rhymes: -on
• Syllabification: -ción

-ción f (plural -ciones)

1. Used in forming a noun to represent the property corresponding to a verb; -tion

   ‎neutralizar (“to neutralize”) + ‎-ción → ‎neutralización (“neutralization”)

-ción may become -sión if preceded by "s", or -tión if preceded by "t". (e.g. propulsión, digestión)

• → Tagalog: -syon

• “-ción”, in Diccionario de la lengua española, Vigésima tercera edición, Real Academia Española, 2014