This is the 6776th most frequent Japanese word.
ファイッ
A Japanese term derived from "fight," used to cheer someone on or encourage them to do their best.
In this sentence, "ファイッ" is used as a cheer or encouragement to motivate and energize the team before an event or effort.
彼は試合前に仲間たちに「ファイッ」と声をかけた。
He encouraged his teammates with "Fight!" before the match.
Here, "ファイッ" expresses support and encouragement directed at someone who is putting effort into their goals.
友人が試験に向けて頑張る様子を見て、「ファイッ」と声援を送った。
Seeing his friend studying hard for the exam, he cheered, "Fight on!"
"ファイッ" in this case illustrates self-encouragement, pushing oneself to keep striving and not give up.