This is the 2385th most frequent Russian word.
определили
"Determined" or "defined."
The word 'определили' here means 'determined' or 'decided upon', denoting that a specific place for the meeting has been decided.
Мы определили место встречи.
We determined the meeting place.
In this sentence, 'определили' is used to mean 'identified' or 'outlined', indicating that the next steps in the project were specified.
Они определили дальнейшие шаги в проекте.
They identified the next steps in the project.
Here, 'определили' implies 'assessed' or 'evaluated', relating to assessing or determining the knowledge level of the students.