This is the 505th most frequent Latvian word.
darbā
"At work" or "in work."
In this sentence, "darbā" refers to being at the workplace/location of employment.
Es esmu darbā un nevaru runāt.
I am at work and cannot talk.
Here, "darbā" denotes the context of the professional environment where tasks are undertaken.
Mums darbā ir daudz jaunu projektu.
We have many new projects at work.
In this usage, "darbā" emphasizes the effort put into professional responsibilities.