Translation guide
The English word 'ray' can refer to a beam of light, a type of fish, or a geometric line. This guide focuses on the most common meanings for English-speaking learners: a ray of light/sunlight, and the fish. Other meanings like geometry or radiation are less common in daily conversation.
Expressing a narrow beam or shaft of light, especially sunlight.
General term for a ray or beam of light. Used in both literal and scientific contexts.
太陽の光線が雲の間から差し込んだ。
Rays of sunlight streamed through the clouds.
Refers to sunlight or sunshine, often implying rays of the sun. Very common in daily conversation.
朝の日差しが部屋に入ってきた。
The morning rays of sun came into the room.
Literally 'a single streak of light'. Used for a dramatic or poetic ray of light.
暗闇の中に一条の光が見えた。
I saw a single ray of light in the darkness.
A beam or shaft of light, often used in literary or dramatic descriptions.
山の向こうから光芒が差した。
A ray of light shone from beyond the mountain.
Expressing a small sign of hope in a difficult situation.
The most common way to say 'a ray of hope'. Literally 'a single thread of hope'.
その知らせは私たちに一筋の希望を与えた。
The news gave us a ray of hope.
Literally 'bright light', used metaphorically for hope or a hopeful sign.
将来に光明を見いだす。
To find a ray of hope for the future.
Referring to the flat-bodied sea creature.
General term for ray (the fish). Often written in katakana.
水族館で大きなエイを見た。
I saw a big ray at the aquarium.
Kanji for ray fish, but rarely used. Katakana is standard.
鱏は海の底に住んでいる。
Rays live on the ocean floor.
A line with a starting point that extends infinitely in one direction.
Mathematical term for a ray. Used only in geometry contexts.
点Aを端点とする半直線ABを引く。
Draw ray AB with endpoint A.
While 'ray' often refers to light, Japanese uses different words depending on context. 光 (ひかり) is general 'light', while 光線 (こうせん) specifically means 'ray/beam'. Using 光 alone may not convey the narrow beam nuance.
日差し (ひざし) emphasizes the rays or warmth of the sun, often used for sunlight streaming in. 日光 (にっこう) is more general 'sunlight'. For 'a ray of sun', 日差し is more natural.