Added 8 October 2026 retainer /ɹɪˈteɪn.ə/ noun Categories: Money & PropertyPeopleRare Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about retainer at Wordnik → Where our words come from → A fee charged in advance to retain the services of someone. A person working in the service of another (especially in the household). A dental appliance that holds teeth (or a prosthesis) in position after orthodontic treatment. Related Words: considerationservantretentionretainingretrievalfixingrecoverystoprestraintallowanceprovisionsubjection Back to today's word