Basic Meaning
Primary Function
Grammar Structure
Usage Contexts
Not used. Highly informal.
Very common among friends, family, and close colleagues.
Primarily in informal writing like casual messages.
Highly frequent in casual conversation.
Common Applications
Important Points
Common Mistakes
Cultural Context
Subtle Differences
Conjugation Notes
Attaches to the plain form of verbs and い-adjectives. For な-adjectives and nouns, it requires なんだって.
Pronunciation Tips
Often pronounced quickly. The ん is a syllabic nasal sound. Listen to native speakers for the natural rhythm.
Memory Tips
Relate んだって to だって (because/they say) or んです (explanation). Think of it as adding a casual “they say” or “I hear” to a plain form sentence.

I’m a software engineer based in Japan, with experience in developing web and mobile applications. I’m passionate about technology, especially in DevOps, AI, and app development using platforms like AWS, Flutter, and Node.js. My goal is to build a website that shares knowledge about the Japanese language and IT, helping everyone learn and grow more easily in the digital era.