This is the 29th most frequent Estonian word.
oleks
"Would be."
Used to propose a hypothetical idea or suggestion.
Mis oleks, kui läheksime matkama?
What if we went hiking?
Used to express a hypothetical or polite suggestion.
Oleks tore, kui sa saaksid tulla peole.
It would be great if you could come to the party.
Used as a conditional subjunctive form to express an unreal situation.