ガンバレ

do your best, hang in there, keep it up

→ 頑張れ
ガンバ do one's best, work hard, persevere + レ Imperative
interjection Rare #39,772
do your best, hang in there, keep it up A katakana spelling of 頑張れ, often used for emphasis.
JA: ガンバレ、あと少しだよ。
EN: Keep it up, you're almost there.

ガンバレもうちょっとだ!

Keep going—you’re almost there!

— 魔女の宅急便 (1989)

ガンバレ!

You can do it!

— 魔女の宅急便 (1989)

ガンバレ

You can do it!

— 紅の豚 (1992)

ガンバレガンバレ

Keep it up, keep it up!

— 魔女の宅急便 (1989)