How to say "assemble" in Japanese

Choosing the right word
  • 組み立てるくみたてるJLPT N2approx.Common
    ichidan verb, transitive verbThe physical sense of assemble: putting parts or pieces together to construct a whole, as when assembling furniture or a machine. Use it when assembly means physically building something from its components.
    昨日きのう、アンプを組み立くみたてた。↗
    I built an amplifier yesterday.
  • 集まるあつまるJLPT N4approx.Common
    godan verb, intransitive verbThe intransitive sense: people or things come together on their own, as when a crowd assembles or members gather for a meeting. The subject is what assembles; no one is doing the gathering.
    私達わたしたちは先生せんせいの前まえに集あつまった。↗
    We gathered around the teacher.
  • 集めるあつめるJLPT N4approx.Common
    ichidan verb, transitive verbThe transitive counterpart: to assemble things such as documents, information, or materials by bringing them together from various places. Use it when someone actively gathers what is needed for a purpose.
    趣味しゅみは切手きってを集あつめることです。↗
    My hobby is collecting stamps.
  • 取り揃えるとりそろえるCommon
    ichidan verb, transitive verbAssemble in the sense of getting a complete set together: a store assembling a full range of goods, or someone gathering every item needed so that the set is complete.
  • 集うつどうCommon
    godan verb, intransitive verbPeople coming together — to meet or congregate — but with a formal or literary flavor. In everyday speech the ordinary verb 集まる covers this sense; choose 集う when writing in an elevated style.
    すべての野獣やじゅうが集つどう。↗
    The wild beasts all gather.

For assembling parts into a whole use 「組み立てる」; for people or things coming together, 「集まる」; for actively gathering things, 「集める」; for assembling a complete set of goods, 「取り揃える」; for formal or literary gatherings, 「集う」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
See also

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

Say it right, write it right

Core lookup works fully offline, with cloud pronunciation and one-tap save & review. Free, no sign-up.

Free downloadWindowsFree downloadmacOSDownload on the App StoreGet it on Google Play
MobileiOS / Android

Android

QR code for the Google Play pageGet it on Google Play

Scan it with your Android phone to install, or search for “Tomoshi” on Google Play.

iOS

QR code for the App Store pageDownload on the App Store

Scan it with your iPhone camera to install, or search for “Tomoshi” in the App Store.

Install the browser extensionLook words up on any web page · Chrome / Edge / Safari

Screenshot of a Tomoshi lookup resultScreenshot of Tomoshi lookup results on a phone

Windows macOS Chrome / Edge / Safari extension iOS / Android