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Definition of Onii-chan


Older brother or head of the family.

Friend or member of the same clan for whom you feel admiration and affection.

Person with very high moral values , and an attitude framed by honesty and respect for others.


Expression that refers to the platonic love of a girl towards a man older than her.

Gesture of affection towards a person who is physically attractive.


  1. Older brother
  2. Higher
  3. Senpai


  1. Otouto (younger brother)
  2. Apprentice
  3. Beginner


It is a variant of the word Onii-san and comes from Japan. It is estimated that it first appeared in 2007 as a term used to give special respect to the elder brother of the family or clan.

Onii means older brother or head of the family. Chan is a suffix that is used as a diminutive that represents affection, admiration and familiarity. The latter works in a similar way to the Spanish suffix “-ito”.

If we combine both words, the term Onii-chan appears, whose literal translation is “little brother”. It should be noted that this term only applies to older male brothers.


Oni written with an i refers to a Japanese demon.

In 2008, a process of dissemination on the internet began to make the meaning of this word known throughout the world.

In 2015 Onii-san became part of the most used phrases for memes on the internet.

In anime, onii-chan type characters have a tendency to act serious and superior to their minors.