little brother; younger brother
Neutral term for one's own younger brother or a younger brother in general. Not commonly used in modern everyday speech; 弟 (おとうと) is the standard word.
He is my younger brother.
my younger brother (humble)
Humble form used when referring to one's own younger brother to someone outside the family. Archaic and very formal; 弟 (おとうと) is used in modern humble contexts.
I; me (humble, male, used in letters)
Humble first-person pronoun used by men, mainly in letters. Extremely formal and archaic; not used in modern conversation.
See also: 大兄
My younger brother is in your care.
I have arrived safely.
Standard kanji form for this word.
Variant kanji form; less common than 小弟.
Composed of 小 (small, young) and 弟 (younger brother). The reading しょうてい is the on'yomi of the characters. The word is a formal Sino-Japanese compound, now largely replaced by 弟 (おとうと) in modern Japanese.