French Phrase
On est tous sur la même longueur d'onde ?
Meaning
The sentence asks whether everyone shares the same understanding, opinion, or feeling about a topic. It’s the French equivalent of ‘Are we all on the same wavelength?’ and is used to check if a group is aligned.
When to use
Use it in informal group settings—team meetings, friendly debates, or when you want to confirm that everyone is on the same page before moving forward.
✦Grammar Breakdown
Onesttoussurla même longueur d'onde?
On
Informal pronoun meaning 'we' or 'one', used in everyday conversation.
est
Third‑person singular present of être; agrees with the subject 'on'.
tous
Adverbial pronoun meaning 'all', placed before the verb to stress inclusivity.
sur
Preposition meaning 'on' or 'about', introducing the idiomatic expression.
la même longueur d'onde
Literal 'the same wavelength'; idiomatically it means sharing the same point of view or understanding.
🗨In Conversation
On est tous sur la même longueur d'onde ?
Are we all on the same wavelength?
Oui, je pense que nos idées se rejoignent.
Yes, I think our ideas line up.
✕Common Mistakes
On est sur la même longueur d'onde tous ?
Placing ‘tous’ after the verb (e.g., ‘On est sur la même longueur d'onde tous’) sounds unnatural; it should precede the verb.
On est tous sur la même longueur de vague ?
Do not translate literally as ‘the same wave length’; keep the idiomatic phrase intact.
↔Alternatives
On est tous d'accord ?
Do we all agree?
On se comprend bien ?
Do we understand each other well?
On est sur la même page ?
Are we on the same page?
Cultural Tip
‘Longueur d'onde’ is a scientific term that became a popular idiom in French media and everyday speech. It’s informal, so avoid it in very formal written reports. In Quebec you’ll also hear the same expression, but some speakers may prefer ‘être sur la même fréquence’.