How to Say “Green Light” in Japanese: Formal and Informal Ways

If you’re looking to learn how to say “green light” in Japanese, you’ve come to the right place! In this comprehensive guide, we’ll explore the formal and informal ways to express this phrase in Japanese. We’ll also touch upon regional variations, but our focus will primarily be on the standard Japanese language. Let’s dive in and discover various ways to communicate the idea of a “green light” in Japanese!

Formal Ways to Say “Green Light”

In formal situations, it’s important to use respectful language. Here are some formal phrases you can use to convey the concept of a “green light”:

1. 緑の信号 (Midori no Shingō)

The most commonly used phrase for “green light” in Japanese is 緑の信号 (Midori no Shingō). This is the formal phrase used in traffic contexts and is universally understood throughout Japan. Whenever you encounter a green traffic light, this is the term you’ll hear over public transportation announcements and see on road signs.

緑の信号で、 進んでください。
(Midori no Shingō de, susunde kudasai.)
Please proceed with the green light.

2. 緑色のライト (Midori-iro no Raito)

Another formal way to express “green light” is 緑色のライト (Midori-iro no Raito), where “Midori-iro” means “green color” and “Raito” stands for “light.” While this phrase is less commonly used in traffic-related contexts, it can be used to describe a green light in other scenarios, such as indicating a “go” signal in a non-traffic context.

(Yajirushi ga tentō shite iru toki wa, midori-iro no raito ga tsuite iru toki desu.)
When the arrow is lit, it’s the time when the green light is on.

Informal Ways to Say “Green Light”

In casual conversations or among friends, you can use more relaxed expressions for “green light.” Here are a few informal phrases you can incorporate into your daily Japanese interactions:

1. 青信号 (Ao Shingō)

One of the informal ways to say “green light” is by using 青信号 (Ao Shingō). While “Ao” translates to “blue” in Japanese, it is often used to describe the green light in everyday language. This informal expression is commonly used among locals, especially when talking about traffic situations.

(Ao shingō ni nattara, susunde ii yo.)
When it turns green, you can proceed.

2. 真っ青な信号 (Massao na Shingō)

Another informal way to express “green light” is by using the phrase 真っ青な信号 (Massao na Shingō). “Massao” means “pure blue” and is commonly used to describe the color of the green traffic light in colloquial Japanese. While it may sound unusual to refer to a green light as “pure blue,” it is a widely understood expression in everyday conversations.

(Ano kōsaten no massao na shingō wa nagai jikan ao ni narimasu.)
The green light at that intersection stays green for a long time.

Regional Variations

While the phrases mentioned above are universally understood across Japan, it’s worth mentioning that certain regional variations exist. These variations may include local dialects or colloquial expressions unique to specific areas. For example:

  • Osaka Dialect: In Osaka, you might hear the term “green light” referred to as 赤点灯 (Akaten-tē).
  • Tokyo Dialect: In Tokyo, some locals may use the word 青っぱい信号 (Aoppai Shingō) to describe a “green light.”

Although regional variations can add color and flavor to your Japanese conversations, the formal and informal phrases mentioned earlier will serve you well in any part of Japan. It’s always advisable to stick to standard Japanese unless you’re comfortable with and familiar with the local dialects.


Congratulations! You’ve now learned various ways to say “green light” in Japanese. Remember, in formal situations, you should stick to phrases like 緑の信号 (Midori no Shingō) or 緑色のライト (Midori-iro no Raito). In informal conversations, you can use expressions like 青信号 (Ao Shingō) or 真っ青な信号 (Massao na Shingō).

While regional variations exist, it’s recommended to primarily use the standard expressions mentioned above. By incorporating these phrases into your vocabulary, you’ll be able to navigate traffic situations and convey the concept of a “green light” with ease when communicating in Japanese.

Enjoy your language learning journey and have fun exploring the beautiful nuances of Japanese expression!

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