This is the 393rd most frequent Estonian word.
muidugi
Certainly; of course.
In this context, 'muidugi' is functioning as a reassurance, indicating the speaker's reliable knowledge.
Kas sa tead, kus ta on? Muidugi, ta on köögis.
Do you know where he is? Of course, he's in the kitchen.
Here, 'muidugi' is used to affirm one's agreement or certainty in a confident manner.
Muidugi ma tulen sinuga.
Of course, I will come with you.
Here, 'muidugi' is used to express that the following action was natural or obvious under the circumstances.