5 Old HSK word(s):

☊弟弟 ** A

☊兄弟 ** B

☊徒弟 ** C

☊弟兄 ** C

☊子弟 ** D

把兄弟 * * 表弟 * * 表兄弟 * * 弟 * * 父老兄弟 * * 高干子弟 * * 姐弟 * * 老弟 * * 难兄难弟 * * 内弟 * * 师弟 * * 堂弟 * * 堂兄弟 * * 纨绔 /裤子弟 * * 误人子弟 * * 兄弟 * *

兄 elder brother

弟 young brother / junior / i, me

Hsk Characters: 弟 *

HSK -Characters and beyond:

Gb	Big5	Eng	Rad	Mega	Triple	Multilingual
弟 5F1F +	弟 + +	young brother / junior / i, me	弓	弟	Bow 弟 (JÜNGERER_BRUDER) di4	+

Korean:

弟 + 弟 아우 제

3 NHSK word(s): 弟弟 * 2 di4 di5younger brother/ CL:個|个[ge4];位[wei4] 兄弟 * 5 xiong1 di4older and younger brother/ brothers/ brotherly/ fraternal/ CL:個|个[ge4] 徒弟 * 6 tu2 di4apprentice/ disciple

KOREAN6000 word(s):

2 KOREAN 2500 New HSK words):
弟弟 + dìdi 남동생. namdongsaeng.
兄弟 + xiōngdì 형과 아우. 형제. hyeong-gwa au. hyeongje.

1 KOREAN Sentence(s):
哥哥 / 弟弟 + 형 / 오빠 / 남동생 hyeong / oppa / namdongsaeng