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mother-of-pearl
mother of the chapel
mother-of-thousands
Mother’s Day
mother ship
mother superior
mother tincture
mother-to-be
mother tongue
mother wit
motherboard
motherese
motherfucker
motherhouse
Mothering Sunday
motherland
motherless
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mother tongue
moth·er tongue (plural moth·er tongues)


noun 
Definition:
 
1. first language: the first language somebody learns as a child at home
2. original language: a language from which other languages have developed
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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