Translation guide
A trefoil is a three-lobed shape, often used in architecture, heraldry, and design. In Japanese, it is typically described by its shape or context, as there is no single common word.
Describing a shape with three rounded lobes, like a clover leaf.
Literally 'three-leaf shape', this is the most straightforward way to describe a trefoil shape in everyday Japanese.
その窓は三つ葉の形をしている。
That window has a trefoil shape.
Means 'three-leaf pattern', used when referring to a decorative trefoil motif.
この布地には三つ葉模様が織り込まれている。
This fabric has a trefoil pattern woven into it.
Describes the shape by comparing it to a clover leaf, which is a common trefoil. Useful for clarity.
そのロゴはクローバーの葉の形に似ている。
That logo resembles a trefoil shape.
Referring to a trefoil arch or window in Gothic architecture.
A technical term for a trefoil ornament in architecture. Used in art history contexts.
教会の三葉飾りのアーチが美しい。
The church's trefoil arch is beautiful.
A descriptive phrase meaning 'three-leaf-shaped arch', easily understood by non-specialists.
この建物には三つ葉形のアーチが使われている。
This building uses trefoil arches.
A trefoil symbol in coats of arms or emblems.
In heraldry, '三つ葉' can refer to a trefoil charge. Often used in family crests.
家紋に三つ葉が描かれている。
The family crest features a trefoil.
Specifically means 'trefoil crest' or 'three-leaf emblem'.
その旗には三つ葉紋があしらわれている。
The flag is adorned with a trefoil emblem.
Referring to plants of the genus Trifolium (clovers) or other three-leaved plants.
The common Japanese word for clover, which is a type of trefoil. Use this for everyday plant references.
庭にクローバーがたくさん生えている。
There are many trefoils (clovers) growing in the garden.
A Japanese name for clover, literally 'packing grass', but less common than クローバー. Sometimes used in botanical contexts.
Japanese does not have a common, all-purpose word for 'trefoil'. Instead, describe it by its shape (三つ葉の形) or context (architecture, heraldry, etc.). Using the English loanword 'トレフォイル' is possible but very rare and may not be understood.
Trefoil (clover) is a leguminous plant.