Only; merely; at most — used to downplay or belittle something, implying it isn't a big deal.
たかが一度の失敗で諦めるな。
Don't give up over just one failure.
たかが風邪だと言って病院に行かなかったら悪化した。
He dismissed it as just a cold and didn't go to the hospital, and it got worse.
たかが数百円の差で買う店を決めるのは馬鹿らしい。
It's silly to choose a shop over a difference of just a few hundred yen.
たかがゲームの結果でそんなに怒ることはないよ。
There's no need to get that mad over just the result of a game.