Meaning of 頑張って in Japanese

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Definition of 頑張って

がんばって(ganbatte) 【頑張って】

(exp) hold on; go for it; keep at it
新しい仕事がんばってください。
Every success in your new job.

I'm expecting a decent catch, so please try your best at fishing for us.

Had he worked harder, he could have succeeded.

ビルは太らないように頑張っているね。

Bill is really fighting the battle of the bulge.

しっかり頑張ってこいくる。

Go in and win!

Sending manuscript after manuscript paid off. A magazine finally published my work.

We've been moping around too much. It's time to pull ourselves together and keep trying.

With your mother in the hospital, you'll have to work harder.

お祭りの間あいだ頑張ってくれましたね。

I greatly appreciate your efforts during our festival.

いやいいえ、１、２ヶ月とにかく頑張ってみましょう。

No, we'll be in fighting shape in just a month or two.

いつも頑張って勉強べんきょうしてるするよ。

I always study hard.