Translation guide
The English verb "assemble" covers gathering people, putting parts together, and collecting information. Japanese uses different verbs for each meaning.
To bring people together in one place, often for a meeting or event.
Transitive verb meaning to gather people or things. The most common and versatile choice.
The president assembled all employees in the conference room.
Intransitive verb meaning people gather or assemble. Use when the subject is the group itself.
A large crowd assembled in the square.
Formal term for convening a meeting or summoning members. Often used in official or organizational contexts.
The chairperson assembled an emergency meeting.
To fit separate pieces together to form a whole object, like furniture or machinery.
The standard verb for assembling physical objects from parts. Works for furniture, models, machines, etc.
He assembled the bookshelf while looking at the instructions.
Used in manufacturing or mechanical contexts for fitting parts together, often with a nuance of attaching or installing.
The work of assembling engine parts.
Loanword from English, used in technical or hobby contexts (e.g., model kits, programming). Not common in everyday speech.
This plastic model can be assembled easily.
To gather facts, evidence, or materials together, often for a specific purpose.
集める is for gathering separate items into a group (people, data). 組み立てる is for fitting parts together to form a single object (furniture, machines). Do not use 集める for physical assembly of objects.
English "assemble" can be translated literally as アセンブルする, but this is unnatural in most contexts. Stick to the verbs above unless you are in a very technical or hobbyist setting.
The investigation team assembled evidence at the scene.