~って (topic)
Casually bring up what you are talking about
You’ll be able to recognize and use って as a conversational topic marker in place of more explicit phrasing.

おじいちゃんって、本当にいろんな植物を知っているね。
ojiichan tte, hontou ni ironna shokubutsu o shitte iru ne.
What do you think this sentence means?
Grandpa really knows so many kinds of plants, doesn't he?
Bring up a topic casually
~って is a casual conversational topic marker equivalent to は or というのは. It brings up a person, thing, or matter as the topic of the sentence.
この本って、面白いの?
kono hon tte, omoshiroi no?
Is this book any good?
「すみません」って、便利な言葉だね。
"sumimasen" tte, benri na kotoba da ne.
“Sumimasen” is a handy word, isn’t it?
Attach って to the topic
Attach って directly to a noun, name, or phrase to introduce it as the conversational topic.
来週の試験って、何曜日だっけ?
raishuu no shiken tte, nan'youbi dakke?
As for next week's exam, which day of the week was it again?
「駅前の新しいパン屋って、何時から開いてるの?」
“ekimae no atarashii pan’ya tte, nanji kara aiteru no?”
“What time does the new bakery by the station open?”
「『冷やし中華』って、どんな料理?」
“‘hiyashi chuuka’ tte, donna ryouri?”
“What kind of dish is ‘hiyashi chūka’?”
「君のお兄さんって、本当に背が高いね。」
“kimi no oniisan tte, hontou ni se ga takai ne.”
“Your big brother is really tall, isn’t he?”
7 more examples in the grammar path — free for a limited time.