From mission + -er.

missioner (plural missioners)

1. A missionary.

• minorises, oneirisms, remission

From missió +‎ -er.

• IPA^(key): (Northern) [mi.si.uˈne̞]
• IPA^(key): (Balearic, Northwestern) [mi.si.oˈne]
• IPA^(key): (Central) [mi.si.uˈne]
• IPA^(key): (Valencia) [mi.si.oˈneɾ]

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missioner (feminine missionera, masculine plural missioners, feminine plural missioneres)

1. missionary

   Synonym: missional

missioner m (plural missioners)

1. missionary

   Synonym: missionista

• “missioner”, in Diccionari de la llengua catalana [Dictionary of the Catalan Language] (in Catalan), second edition, Institute of Catalan Studies [Catalan: Institut d'Estudis Catalans], April 2007

missioner

1. indefinite plural of mission