You searched for "toeestus" — Estonian uses special characters, here's the correct spelling:
tõestus
B2
millegi olemasolu või tõesuse kinnitamine või veenev põhjendamine, hrl uurimistulemustele, faktidele või loogikale toetudes;,midagi tõestav, kinnitav asjaolu,väite, teoreemi kehtivuse, tõesuse tuletamine ja põhjendamine
Estonian uses four special letters: õ, ä, ö, ü.
When typing without a special keyboard, people often write oe, ae, oe, ue instead.
Estly.ee understands both.
Estly.ee is developed by Amekage OÜ,
The platform is primarily designed and architected by Joosep Wong, with the goal of making Estonian vocabulary easier to discover, remember, and practise through digital tools and interactive learning methods.