What does it mean word for word?
The phrase is composed of 友 (tomo), meaning "friend" and the particle よ (yo), which functions as a poetic or emphatic vocative particle used when addressing someone directly.
Is there a formal and an informal way to say it?
The phrase やあ、友よ! is considered literary/poetic. It sounds highly literary or dramatic, similar to how a character in a fantasy novel or a poem might address a friend, rather than how people speak in daily life. For more formal contexts involving the concept of a friend, the word 友人 (yūjin) is used. In everyday respectful speech, remember that the honorific -san is added after a person's name to show respect.
How does it change in a sentence?
The particle よ (yo) at the end of the phrase serves as an emphatic or poetic way to address the person you are speaking to.
How do you pronounce it?
Yaa, tomo yo!
Did you know?
- In modern Japanese, if you actually wanted to greet a friend, you would almost never use the word 'friend' at all, opting instead for their specific name.
- The particle よ (yo) in this phrase acts as a 'vocative', a grammatical tool to call out to someone that has largely disappeared from modern spoken Japanese except in poetry and scripts.
- If you use おい (oi) to get a friend's attention, be careful, as it can sound like a command or a shout to a subordinate and may be seen as rude to people you are not extremely close with.
Example conversation
Two friends meet unexpectedly at a park.
- 陽葵 Himariやあ、友よ!元気にしてた?Yā, tomo yo! Genki ni shiteta?Hi, friend! Have you been doing well?
- 大翔 Hirotoああ、元気だよ。陽葵こそどうだい?Ā, genki da yo. Himari koso dō dai?Yeah, I'm good. How about you, Himari?
- 陽葵 Himari私も元気。ちょうど大翔に会いたいと思ってたの。Watashi mo genki. Chōdo Daito ni aitai to omotteta no.I'm good too. I was just thinking I wanted to see you, Daito.
- 大翔 Hirotoそれは嬉しいな。どこかで茶でも飲もうか。Sore wa ureshii na. Doko ka de cha demo nomō ka.That's great. Shall we go grab some tea somewhere?