Esthonian

UK: /esˈtəʊnɪən/ US: (e stō′nē ən, es thō′-)

WordReference Random House Unabridged Dictionary of American English © 2025

Es•tho•ni•an  (e stō′nē ən, es thō′-), adj., n. 

1. Estonian.

WordReference Random House Learner's Dictionary of American English © 2025

Es•to•ni•an /ɛˈstoʊniən/   adj. 

1. of or relating to Estonia.

n. 
2. [countable] a person born or living in Estonia.
3. [uncountable] the language spoken by many of the people living in Estonia.

WordReference Random House Unabridged Dictionary of American English © 2025

Es•to•ni•an  (e stō′nē ən), adj. 

1. Language Varieties of or pertaining to Estonia or its people.

n. 

2. Language Varieties a member of a Finnish people inhabiting Estonia, Livonia, and other districts of Russia.
3. Language Varieties the Uralic language of Estonia, very closely related to Finnish.

Also, Esthonian. 

• Estoni(a) + -an 1785–95

Collins Concise English Dictionary © HarperCollins Publishers::

Estonian / ɛˈstəʊnɪən/, Esthonian / ɛˈstəʊnɪən ɛˈsθəʊ-/ adjective

1. of, relating to, or characteristic of Estonia, its people, or their language

noun

1. the official language of Estonia: belongs to the Finno-Ugric family
2. a native or inhabitant of Estonia