Meaning of がんばって in Japanese

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Definition of がんばって

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.

You should struggle so hard to make this program work.

一生懸命いっしょうけんめいがんばっても彼女の名前なまえが思い出せない。

I'm trying hard, but can't think of her name.

もう少しもうすこしがんばっておけば、入学試験にゅうがくしけんに受かっていただろうに。

If you had made more effort, you would have passed the entrance examination.

どんなにがんばっても君きみに一等賞いっとうしょうはとれない。

Try as you may, you will never win first prize.

どんなにがんばってみても。

No matter how hard I tried.

I'll try as hard as I can.

その調子ちょうしでがんばって。

Keep it up.

スミス夫人は夫おっとの死後しごしっかりがんばっている。

Mrs. Smith is bearing up well since the death of her husband.

I've decided to be more positive and give it all I've got.

You must be tired, but hang on 'til 3.