頑張る (do one's best, persevere)

The distinctively Japanese verb 頑張る ('persist, do one's best, push through, hang in there'). A culturally loaded word for effort and endurance, saturating everyday encouragement (頑張って, 頑張ろう, 頑張ります) and reflecting the cultural value placed on steady effort across school, work, and sports. No clean English equivalent — far more pervasive than any single English word.