This is the 234th most frequent Greek word.
γρήγορα
"Γρήγορα" means "quickly" or "fast" in English.
In this context, 'γρήγορα' is used as an adverb modifying the verb 'τελειώσουμε' indicating the urgency of completing quickly.
Πρέπει να τελειώσουμε γρήγορα.
We need to finish quickly.
Here, 'γρήγορα' functions as an adverb describing the verb 'κολυμπάει', emphasizing the speed of swimming.
Κολυμπάει τόσο γρήγορα όσο ένα δελφίνι.
He swims as fast as a dolphin.
In this instance, 'γρήγορα' is employed as an adverb complementing 'απάντησε', illustrating the swift response to a question.