流入（りゅうにゅう、ryuunyuう）
- inflow

The Japanese word 流入 (りゅうにゅう) means "inflow," "incursion," "ingress," or "to flow into." It describes the act of something entering or coming into a place, system, or area. This can be physical, like water flowing into a river, or more abstract, like capital flowing into an economy. The word emphasizes the movement of something *into* a specific location or situation. The focus is on the act of entering or the process of something becoming a part of something else. This can be used for the concept of inflow, 流入, or the actual action to 流入.

⚫︎水が川に流入する。 Translation: Water flows into the river. ⚫︎外国からの資本流入が増加した。 Translation: The inflow of capital from abroad increased. ⚫︎データがシステムに流入する。 Translation: Data flows into the system.

流入 is used in formal and informal contexts. It's suitable for describing the movement of various elements, such as water, data, money, people, or ideas. It's versatile and can be used in a wide range of situations where something is entering or coming into a particular space or entity. It is often used when discussing economics, environment, or the flow of information.

流入 is typically written in kanji as 流入, but can be written in hiragana as りゅうにゅう. The okurigana is standard, with no variations. The word is always pronounced as りゅうにゅう. There are no other common ways to write this word. The kanji 流 (ryuu/naga(reru)) means "to flow," and 入 (nyuu/iru) means "to enter."

⚫︎ 流入 (りゅうにゅう) - Inflow ⚫︎ 入る (はいる) - To enter ⚫︎ 浸入 (しんにゅう) - Invasion/Penetration ⚫︎ 流入する (りゅうにゅうする) - To flow in ⚫︎ 流入量 (りゅうにゅうりょう) - Inflow amount

⚫︎ 流出 (りゅうしゅつ) - Outflow ⚫︎ 排出 (はいしゅつ) - Discharge/Emission ⚫︎ 出る (でる) - To exit/leave

この川は、雨水が流入し、水かさが増しました。 ・Translation: This river increased in volume as rainwater flowed into it. ・Explanation: This sentence describes how rainwater is entering the river, increasing its water level.

新しい技術が市場に流入し、競争が激しくなりました。 ・Translation: New technology flowed into the market, intensifying competition. ・Explanation: The sentence explains how the introduction of new technology affected market dynamics.

The word 流入 is a compound word formed from two kanji. 流 (ryuu) which means "to flow," and 入 (nyuu) which means "to enter" or "to go in." The combination of these two characters directly expresses the meaning of "flowing into" or "inflow."