katsukatsu
1.

To overcome an opponent or rival in a contest or competition, proving one's superiority or skill in comparison to others.

2.

To triumph over personal challenges, desires, or temptations, demonstrating self-control and strength of will.

3.

To exhibit a dominant quality or characteristic that stands out more prominently than others in a given context.

4.

To bear a burden or responsibility that exceeds one's capacity, resulting in an overwhelming situation.

Example:

この病気に勝てる人は少ない。

uchikatsu
1.

To achieve victory over a formidable opponent in a competition or conflict, demonstrating superiority in skill or capability.

2.

To endure challenges or hardships and emerge stronger, effectively overcoming obstacles that present themselves.

3.

To successfully surpass an adversary in a direct confrontation, particularly in sports or games, showcasing a higher level of performance.

Example:

新進ボクサーがチャンピオンに打ち勝った。

serikatsu
1.

To emerge victorious after a closely contested battle or competition, often involving intense rivalry.

2.

To prevail over a rival in a situation characterized by fierce competition, particularly in scenarios requiring skill and strategy.

3.

To gain an advantage over an opponent in a challenging environment where success is determined by small margins.