go one better verb2 •To take a bet and add another to it. •To outdo somebody; to do something that surpasses what came before.Arsenal, who have finished second for the past three seasons, added Spain international Martin Zubimendi to their midfield for £60m this summer as they look to go one better and win the title. — 2025 formswent one better · gone one better · going one better · goes one better