younger brother; younger male cousin
Meanings
2 senses · 5 examplesnoun
younger brother (by blood, either full or half brother)
Refers to a male sibling who shares one or both parents and is younger than oneself. Can refer to full brothers (同父母), half-brothers with the same father (同父), or the same mother (同母).
I have a younger brother who is five years old this year.
He is my younger half-brother (same father, different mother).
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My little brother is currently in elementary school.
noun
younger male cousin (on the paternal side, from an uncle)
Refers to the son of one's father's brother (uncle) who is younger than oneself. Traditionally distinguished as 堂弟 (táng dì) for paternal cousins and 表弟 (biǎo dì) for maternal cousins, but can be generally referred to as 弟弟 in casual speech.
My younger male cousin (on my father's side) is two years younger than me.
He is my father's cousin's son, and also my younger cousin.