~って・~んだって (hearsay)
Casually report what you heard
You’ll be able to pass on secondhand information naturally in conversation using shortened reporting forms.

この森の奥に、とても綺麗な滝があるんだって。
kono mori no oku ni, totemo kirei na taki ga aru n datte.
What do you think this sentence means?
I heard there is a very beautiful waterfall deep in this forest.
Pass on hearsay casually
~って and ~んだって are casual conversational contractions used to report secondhand information or rumors (equivalent to ~そうだ or ~と聞いた).
明日、テストがあるって。
ashita, tesuto ga aru tte.
I heard there is a test tomorrow.
あの店のラーメン、すごくおいしいんだって。
ano mise no raamen, sugoku oishii n datte.
I heard the ramen at that shop is really good.
Attach って or んだって to plain form
Attach って or んだって to plain forms of verbs, adjectives, or nouns (noun/な-adjective uses だって or なんだって) to report hearsay in casual speech.
佐藤さんは来月結婚するんだって。
satou san wa raigetsu kekkon suru n datte.
I heard Sato is getting married next month.
~って (topic) vs ~って (hearsay)
After a noun at the start, って marks the topic, like は. At the end of a sentence, って passes on what you heard, like そうだ.
topic って, as for
田中さんって、優しいよね。
tanaka san tte, yasashii yo ne.
Tanaka is kind, isn’t he?
Your own opinion about Tanaka.
hearsay って, I hear
田中さんは優しいって。
tanaka san wa yasashii tte.
I hear Tanaka is kind.
Passing on what someone else said.
「山田さん、来月会社を辞めるんだって。」
“yamada-san, raigetsu kaisha o yameru n datte.”
“I heard Yamada is quitting the company next month.”
「駅前のスーパー、明日は卵が半額なんだって。」
“ekimae no suupaa, ashita wa tamago ga hangaku na n datte.”
“I heard eggs are half price at the supermarket by the station tomorrow.”
「お母さんが、夕飯の前に宿題を終わらせなさいって。」
“okaasan ga, yuuhan no mae ni shukudai o owarasenasai tte.”
“Mom says to finish your homework before dinner.”
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