This is the 11th most frequent Latvian word.
būs
"Will be" (future tense of "to be").
The word "būs" is the future tense of "to be," indicating that sunny weather is expected tomorrow.
Rīt būs saulains laiks.
Tomorrow will be sunny weather.
Here, "būs" denotes the state of the task being difficult in the future.
Tas būs grūts uzdevums.
That will be a difficult task.
In this sentence, "būs" expresses anticipation that everything will be fine in the future.