| 一緒に (issho ni) | 共に (tomo ni) | |
|---|---|---|
| Meaning | Together / with (someone) | Together / jointly (formal/literary) |
| Register | Casual to neutral | Formal, written, literary |
| Used in speech? | Very common | Less common — more formal/written |
| Nuance | Side by side, doing something together | Sharing a common cause or experience |
YukaI always use 一緒に for “together,” but I’ve also seen 共に. Are they the same?
ReiThey mean the same thing but feel different! 一緒に is your everyday casual “together.” 共に is more formal and literary — you’d see it in speeches, written texts, or solemn occasions.
What Does 一緒に (issho ni) Mean?
一緒に is the standard, everyday word for together or with someone. It is used in all ages and registers for doing things alongside others. The に makes it an adverb modifying the action.
- 一緒に行こう！ — Let’s go together!
- 一緒に食べましょう。 — Let’s eat together.
- 友達と一緒に勉強した。 — I studied together with friends.
- 一緒にいてくれてありがとう。 — Thank you for being with me.
What Does 共に (tomo ni) Mean?
共に means together or jointly with a more formal, literary, or solemn tone. It suggests a shared experience, shared fate, or collective endeavor. It appears in formal speeches, official statements, song lyrics, and written texts. It is less common in casual everyday speech.
- 共に歩もう。 — Let us walk together. (formal/literary)
- 喜びも悲しみも共に。 — Joy and sorrow, together. (poetic)
- みなさんと共にこの日を祝えることを嬉しく思います。 — I am glad to celebrate this day together with all of you.
- 共に頑張りましょう。 — Let us do our best together. (formal encouragement)
Key Differences
| Feature | 一緒に | 共に |
|---|---|---|
| Register | Casual, everyday | Formal, literary, solemn |
| Used in daily conversation? | Yes — very common | Rarely — sounds overly formal |
| Used in speeches? | Possible | Yes — very natural |
| Emotional weight | Light / warm | Heavy / meaningful |
| Interchangeable? | Yes in formal contexts | Not for casual use |
YukaIf I want to write a heartfelt message to a friend, should I use 一緒に or 共に?
ReiFor a warm personal message, 一緒に is more natural. 共に sounds beautiful but a bit formal for everyday friendship. Though for a meaningful occasion — like a graduation or a long journey together — 共に歩んできた (we have walked together) sounds wonderfully moving!
Quick Quiz
Fill in: 一緒に or 共に?
- 1. ___映画を見ない？ (Do you want to watch a movie together?)
- 2. ___未来を築いていきましょう。 (Let us build the future together.) [formal speech]
- 3. 彼女と___ランチを食べた。 (I had lunch together with her.)
- 4. 喜びも苦しみも___乗り越えてきた。 (We overcame joys and hardships together.) [literary]
Answers: 1. 一緒に 2. 共に 3. 一緒に 4. 共に
📖 Want to take your Japanese further? Practice speaking with a professional Japanese tutor on italki — affordable 1-on-1 online lessons at your own pace.
Summary
| 一緒に | 共に | |
|---|---|---|
| Core use | Everyday “together” | Formal / literary “together” |
| Best for | Daily activities with friends | Speeches, songs, solemn moments |
| Feel | Warm and natural | Meaningful and weighty |
