interjection/ˌpeɾo ˈbweno/
Expresses indignation, annoyance or surprise: hey; Expresses resignation/acceptance: but oh well, but hey, but whatever you say, but okay; Used for a change of subject: (but) in any case, (but) anyway; Used other than figuratively or idiomatically: see pero, bueno.
“Saqué un 7/10 en el examen, pero bueno, es lo que hay.” — I got a 7/10 on the exam, but oh well, it is what it is.