We will respond immediately if a problem occurs.
An immediate answer is being demanded.
This system processes data in real time.
It's expected that we respond immediately to system failures.
Please report immediately if a problem occurs.
This app supports real-time translation.
直ちに is a standard conversational adverb meaning 'at once', while 即時 is more formal and often appears inside compound nouns like 即時対応.
速やか emphasizes doing something promptly and smoothly, while 即時 stresses that there is zero delay, as in real-time systems.
即座 means 'on the spot, instantly' in a reaction sense, while 即時 is more common in technical or procedural contexts like 即時払い.
即時 is a formal word meaning 'immediate' (e.g. 即時対応), while リアルタイム emphasizes ongoing, continuous processing as events occur, often used with tech and media.
Compound of 即 (immediate) and 時 (time), literally 'at that time' or 'instantly'. The reading そくじ is the standard on'yomi combination.