興奮【こうふん】
excitement, stimulation, agitation, arousal
奮う【ふるう】
to muster (e.g. one's courage), to call forth, to rouse up, to be enlivened, to be invigorated
奮って【ふるって】
energetically, strenuously, heartily
奮起【ふんき】
stirring, rousing oneself
奮闘【ふんとう】
strenuous effort, hard struggle, working hard, hard fighting, fierce fighting
発奮【はっぷん】
being roused, being stimulated, being inspired, being spurred on
奮い立つ【ふるいたつ】
to cheer up, to be encouraged (by), to be in high spirits
孤軍奮闘【こぐんふんとう】
fighting alone
奮戦【ふんせん】
hard fighting