Translation guide
Expressing the idea of reducing weight, whether of objects, vehicles, or body weight. Japanese uses different terms depending on context: physical objects, vehicles, or body weight loss.
Making something lighter in weight, such as products, equipment, or materials.
The most common term for weight reduction of objects, equipment, or vehicles. Often used in engineering and manufacturing contexts.
この製品は軽量化されています。
This product has been reduced in weight.
自動車の軽量化は燃費向上に重要です。
Weight reduction of automobiles is important for improving fuel efficiency.
A more general phrase meaning 'to reduce weight'. Can be used for objects, but less technical than 軽量化.
荷物の重さを減らす必要があります。
We need to reduce the weight of the luggage.
Means 'reduction' or 'mitigation', often used for burdens, taxes, or weight in a figurative sense. Can be used for physical weight but less common.
負荷の軽減を図る。
Aim for a reduction of the load.
Reducing one's own body weight, typically for health or aesthetic reasons.
The standard term for weight loss, especially in contexts like sports, health, or dieting.
減量のために運動しています。
I'm exercising to lose weight.
ボクサーは試合前に減量します。
Boxers lose weight before a match.
A straightforward phrase meaning 'to reduce body weight'. Common in everyday conversation.
体重を減らす方法を教えてください。
Please tell me how to lose weight.
Loanword from English 'diet', widely used to mean weight loss efforts or dieting.
A formal or technical term for slimming or weight loss, often used in beauty or medical contexts.
Specifically making vehicles, aircraft, or spacecraft lighter to improve performance.
Same as for objects, but heavily used in automotive and aerospace industries.
航空機の軽量化は燃料消費を抑えます。
Weight reduction of aircraft reduces fuel consumption.
Specifically 'weight reduction of the vehicle body'.
車体の軽量化にカーボン素材が使われています。
Carbon materials are used for vehicle body weight reduction.
減量 is specifically for body weight loss (human or animal). Using it for objects sounds unnatural. Use 軽量化 instead.
製品の軽量化
product weight reduction
軽量化 is for making things lighter (machines, materials). 減量 is for losing body weight. 体重を減らす is a more casual way to say 'lose weight'.
燃費向上には軽量化が不可欠です。
Weight reduction is essential for fuel efficiency.
彼女は減量に取り組んでいます。
She is trying to lose weight.
I succeeded in losing weight.
痩身効果のあるサプリメント。
A supplement with slimming effects.