肘（ひじ、hiji）
- elbow

The Japanese word 肘 （ひじ） refers to the elbow. It’s the joint in the middle of your arm, connecting your upper arm to your forearm. It's a part of the body used for various movements like bending, straightening, and twisting the arm.

⚫︎ 肘をぶつけました。 Translation: I bumped my elbow. ⚫︎ 彼は肘をついて本を読んでいます。 Translation: He is reading a book, leaning on his elbows. ⚫︎ このドレスの袖は肘までです。 Translation: The sleeves of this dress are up to the elbows.

You use 肘 in conversations when you’re talking about your arm, its movements, or describing situations involving the elbow. It is a common and natural word to use. It's important to differentiate it from related body parts, such as the shoulder or the wrist.

The word is typically written with the kanji 肘. The reading is ひじ in hiragana. There are no other common ways to write this word. The okurigana (the suffix hiragana) is not relevant in this case.

There aren't direct synonyms for 肘, as it is a specific body part. Related terms might include other parts of the arm like 腕（うで - arm) or 前腕（ぜんわん - forearm).

There are no direct antonyms for 肘. It's a specific body part.

転んで、肘をすりむいてしまいました。 ・Translation: I fell and scraped my elbow. ・Explanation: This sentence describes an injury to the elbow, using the word 肘 to specify the body part affected.

肘が痛くて、腕を伸ばせません。 ・Translation: My elbow hurts, and I can't straighten my arm. ・Explanation: This sentence explains a physical condition (pain) related to the elbow, and the resulting limitation in movement.

The etymology of 肘 is not widely documented in a way that provides a precise origin or breakdown. The kanji 肘 is a combination of radicals. However, further investigation is needed for a reliable explanation.