兄弟（きょうだい、kyoudai）
- brothers

The word 兄弟, pronounced きょうだい, means "siblings" or "brothers and sisters." It refers to individuals who share the same parents. It encompasses both brothers and sisters.

⚫︎ 私には兄弟がいます。 Translation: I have siblings. ⚫︎ 彼女には二人の兄弟》がいます。 Translation: She has two siblings. ⚫︎ 兄弟》みんな仲が良いです。 Translation: My siblings all get along well.

⚫︎ 兄弟 is used in a general sense to talk about your siblings. ⚫︎ It is appropriate in various contexts, from casual conversations to more formal settings. ⚫︎ When specifying the number of brothers and sisters, you would use counters like 人（nin/person） or 名（mei/person - more formal). ⚫︎ If you want to specify whether they are brothers or sisters, you would use separate words like 兄（ani/older brother), 弟（otouto/younger brother), 姉（ane/older sister), or 妹（imouto/younger sister).

⚫︎ The word 兄弟 is typically written in kanji as 兄弟. ⚫︎ The reading in hiragana is きょうだい. ⚫︎ There are no variations in okurigana. ⚫︎ It is not typically written in katakana.

⚫︎ There aren't many direct synonyms for 兄弟 in the same general sense of siblings. However, if you are emphasizing being a brother, the word 兄弟 could be translated to “brothers”. ⚫︎ Other related words that focus on a particular relationship within the family include: ⚫︎ 兄妹（kyōdai/brothers and sisters - referring specifically to a group of siblings).

⚫︎ There is no direct antonym, as it represents a concept rather than a single entity. The absence of siblings would be described by not having any of these relationships.

私の兄弟は皆、音楽が好きです。 ・Translation: My siblings all like music. ・Explanation: This sentence uses 兄弟 to refer to the speaker’s brothers and sisters and indicates a shared interest.

彼女には兄弟がいません。 ・Translation: She doesn't have any siblings. ・Explanation: This sentence uses 兄弟 in the negative form to indicate the lack of siblings.

⚫︎ 兄弟 is a compound word formed from the kanji 兄（kyō/older brother) and 弟（dai/younger brother). ⚫︎ The word originally referred only to male siblings, but it has evolved to encompass both male and female siblings in modern usage.