This is the 595th most frequent Italian word.
finita
"Finita" means "finished" or "ended" in English.
In this sentence, 'finita' is used as the past participle of the verb 'finire', describing that the action of ending (the lesson) is complete.
La lezione è finita.
The lesson is over.
Here, 'finita' functions as the past participle of 'finire', agreeing in gender and number with the direct object (feminine singular, 'la lista').
Ho finita la mia lista di cose da fare.
I have finished my to-do list.
In this case, 'finita' is used in the passive voice construction, indicating that an external factor (bad weather) caused the action (ending of the race) to occur.