reparar
/repaˈɾaɾ/ · B1 · verb
to notice
🔧👀 re + parar = to stop again: you halt, take notice, then fix what broke
From Latin reparare, to restore, which also gave English repair. In Spain reparar en algo means to notice it, and the old idea is stopping to look closely. That one word covers both: you stop, you spot the problem, and you mend it.