Translation guide
How to express that something is additional, extra, or provided to complete or enhance something else.
Describing something that is added to what already exists, often to make it complete or better.
The most direct equivalent for 'supplementary' when referring to information, explanations, or materials that fill in gaps or add details.
I will distribute supplementary materials.
Referring to dietary supplements, vitamins, or additional food items.
In geometry, two angles that add up to 180 degrees.
The technical term for supplementary angles. Used in math contexts.
Do you need a supplementary explanation?
Means 'additional' and is very common. It can be used for supplementary items, but it emphasizes the act of adding rather than completing.
I will send you supplementary information.
Used for items that come attached or included, like supplementary documents or accessories. Often implies something physically accompanying a main item.
Please refer to the supplementary manual.
The standard loanword for dietary supplements. Widely understood.
I take supplements every day.
A more formal term for nutritional supplements. Often seen on product labels.
This is a dietary supplement.
この二つの角は補角です。
These two angles are supplementary.