monolingualismn.
/ˌmɒnə(ʊ)ˈlɪŋɡwəlɪz(ə)m/, U.S. /ˌmɑnəˈlɪŋɡwəˌlɪz(ə)m/ The condition of knowing or using only one language; the ability to speak only one language.
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the mind > language > a language > using or speaking languages > [noun] > monolingualism
monoglottism1892
monolingualism1899
1899 Glamorgan Free Press 25 Feb. 4/5 Englishmen..must not taunt us with inability to be bilingual when it is a notorious characteristic of the Englishman that his monolingualism is one of the root causes of his depressing trade and commerce.
1953 Use of Vernacular Lang. in Educ. (Unesco) ii. 50 It does not follow that legislation..requiring the use of the official language at all times will give the same results as actual monolingualism.
1968 Y. Malkiel Ess. Ling. Themes i. 6 It is..held that bilingualism and even trilingualism are more widely disseminated the world over than is strict monolingualism.
1991 Amer. Speech 46 415 As monolingualism increases in Wales, productive influence from Welsh decreases in such a way that those syntactic influences as there have been are heading for erosion.
This entry has been updated (OED Third Edition, December 2002; most recently modified version published online June 2022).
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n.1899