This is the 800th most frequent Czech word.
čtvrtletí
"Čtvrtletí" means "quarter" or "quarter-year period."
Here, 'čtvrtletí' is used to denote a division of the academic year into parts, specifically the first quarter.
První čtvrtletí školního roku skončilo.
The first quarter of the school year has ended.
Here, 'čtvrtletí' signifies a recurring interval of three months used for organizational assessments.
Každé čtvrtletí máme schůzi, která hodnotí naši práci.
We have a meeting every quarter that evaluates our work.
In this context, 'čtvrtletí' refers to a three-month period used in financial or economic reporting.