鬥 is one of the radicals in Kanji, which is a pictogram that means fighting or struggle.

He won the fight.

He was able to fight through the difficulties.

He gave me an ultimatum.

In Christianity, the Last Supper is considered a very important event.

He took the Hippocratic oath to fulfill his duties as a doctor.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.

Everyone was surprised by the news.