This is the 15372nd most frequent Russian word.
починить
To fix or repair.
In this sentence, 'починить' is used in the sense of intending to fix or make functional again.
Я хочу починить мой велосипед.
I want to repair my bicycle.
Here, 'починить' indicates that something was fixed or returned to a state of usability.
Мастер починил сломанный стул.
The craftsman repaired the broken chair.
In this usage, 'починить' is applied metaphorically, illustrating a problem as something that can be repaired.