This is the 545th most frequent Latvian word.
izmeklēšanas
"Investigation" or "inquiry."
Here, 'izmeklēšanas' is used as a genitive singular form to define the type of work (investigation work).
Policija veic detalizētu izmeklēšanas darbu.
The police are conducting detailed investigative work.
In this sentence, 'izmeklēšanas' functions as a time prepositional phrase indicating when something occurred ('during the investigation').
Izmeklēšanas laikā tika atklāti jauni pierādījumi.
During the investigation, new evidence was discovered.
Here, 'izmeklēšanas' acts as a genitive singular form as part of a compound noun expression ('investigation proposal').