interjection
hang in there; go for it; do your best
A common interjection of encouragement, equivalent to 'You can do it!' or 'Keep going!'. Used in casual and supportive contexts.
See also: 頑張る
The verb form meaning 'to do one's best' or 'to persevere'. がんばれ is its imperative form, used as a standalone interjection.
Imperative form of the verb 頑張る (がんばる), which originally meant 'to insist' or 'to be stubborn' but shifted to mean 'to persevere'.