This is the 189th most frequent Estonian word.
selge
Clear.
In this sentence, 'selge' describes the clear and cloudless state of the sky.
See taevas on täna täiesti selge.
The sky is completely clear today.
The word 'selge' is used to express acknowledgement or understanding of a statement or directive.
Selge, ma teen selle ära.
Understood, I will do it.
'Selge' here signifies understanding or clarity of a task or topic in comprehension.