Contrast or comparison; placing things side by side to highlight differences or relationships.
新旧の写真を対照して、街の変化を調べた。
I compared old and new photos to examine the changes in the town.
彼の明るい性格は、対照的に友人の内向的な性格を際立たせた。
His cheerful personality, by contrast, made his friend's introverted nature stand out.
色の対照を意識してデザインを作った。
I designed it with attention to color contrast.