Translation guide
The English word 'loading' can refer to putting items into a vehicle or container, loading data or software in computing, or loading a weapon. This guide covers natural Japanese expressions for each meaning.
トラックが荷物を積み込んでいます。
The truck is loading cargo.
ウェブページが読み込まれています。
The webpage is loading.
To express the action of loading goods, luggage, or cargo onto a truck, ship, plane, etc.
The most common verb for loading cargo or luggage into a vehicle or container. Transitive verb.
トラックに荷物を積み込んだ。
We loaded the truck with packages.
A general verb for piling up or loading things onto something. Can be used for loading cargo, but also for stacking objects.
船にコンテナを積む。
Load containers onto a ship.
Means 'to place on' or 'to load onto' a vehicle or surface. Often used for smaller items or when the focus is on putting something onto a vehicle.
車にスーツケースを載せる。
Load suitcases into the car.
A noun phrase meaning 'to do loading of cargo'. More formal or business-like.
港で荷積みをしています。
They are loading cargo at the port.
To express that a computer program, file, or webpage is being loaded or is in the process of loading.
The standard verb for loading data or files into memory. Transitive verb.
アプリがデータを読み込んでいます。
The app is loading data.
Loanword from English 'load', commonly used in computing contexts. Can be used transitively or intransitively.
ページがロードされるまで待ってください。
Please wait until the page loads.
A noun phrase meaning 'loading' (in progress). Often seen on screens as a status message.
画面に「読み込み中」と表示された。
The screen displayed 'Loading'.
Loanword noun meaning 'loading'. Often used in UI or casual tech talk.
To express the action of inserting ammunition or film into a device.
Formal/technical term for loading a weapon or tool with ammunition, film, etc.
銃に弾丸を装填する。
Load bullets into a gun.
Verb meaning 'to put into' or 'to load' for weapons, often used in compound verbs like 弾を込める.
ピストルに弾を込める。
Load a pistol with bullets.
Alternate kanji form of 装填する, same meaning but less common.
銃に弾丸を装塡する。
Load bullets into a gun.
積む (つむ) implies stacking or piling up, often for larger quantities or cargo. 載せる (のせる) simply means placing something onto a surface or vehicle, and is more general. For loading a truck with boxes, 積む is more natural; for putting a single bag in a car, 載せる is fine.
ロードする is only for computing contexts. Using it for loading a truck would sound very strange.
Loading takes a long time.