Translation guide
The English word 'noticing' refers to becoming aware of something, often through observation. In Japanese, expressing this concept depends on whether the noticing is visual, auditory, or a realization. Common verbs include 気づく (to notice/realize), 見かける (to happen to see), and 目に入る (to catch one's eye).
To express that you have become aware of something, often unexpectedly or after not having noticed it before.
The most common and versatile verb for 'noticing' or 'realizing' something. It can be used for both physical perception and mental realization.
彼が部屋に入ったことに気づかなかった。
I didn't notice that he had entered the room.
間違いに気づいたら、すぐに教えてください。
If you notice any mistakes, please let me know immediately.
Synonymous with 気づく, but slightly more colloquial. Often used in spoken Japanese.
財布を忘れたことに気がついた。
I noticed I had forgotten my wallet.
A more formal term meaning 'to recognize' or 'to perceive'. Used in technical or official contexts.
問題の重要性を認識する必要がある。
We need to recognize the importance of the problem.
To express that you saw something by chance, often in a crowd or while out and about.
Used when you happen to see someone or something, often unexpectedly. It implies a casual sighting.
駅で田中さんを見かけた。
I noticed Mr. Tanaka at the station.
この辺りでよく見かける猫だ。
This is a cat I often notice around here.
Literally 'to enter one's eyes', meaning something catches your attention visually. Often used for things that stand out.
Similar to 目に入る, but often implies something is conspicuous or stands out, sometimes negatively.
To express that you perceived something through hearing or smell.
Literally 'to hear', but often used for overhearing or happening to hear something, like a rumor or a sound.
隣の部屋から変な音を耳にした。
I noticed a strange sound from the next room.
A straightforward way to say 'notice a smell'. 気づく can be combined with various nouns.
ガスの匂いに気づいて、すぐに窓を開けた。
I noticed the smell of gas and immediately opened the window.
To express that you have observed a change in something or someone.
The standard way to say 'notice a change'. 気づく is the key verb.
彼女の髪型の変化に気づいた？
Did you notice the change in her hairstyle?
Used for sensing a presence or a subtle sign of something, like 'noticing a hint of something'.
誰かの気配を感じて振り返った。
I sensed someone's presence and turned around.
気づく is for becoming aware of something (realization or perception), while 見かける is specifically for happening to see someone or something. Use 気づく for abstract realizations (e.g., noticing a mistake) and 見かける for visual sightings.
Avoid directly translating 'notice' as ノーティスする, which is not natural Japanese. Use 気づく or other context-appropriate expressions instead.
そのポスターがふと目に入った。
That poster suddenly caught my eye.
His flashy clothes caught my eye.