Growing in many ways with 成長

Kanji Explanation: Becoming and accomplishing with 成

Mina buys a can of coffee, even though she’s bad at bitter drinks. When her friends question her, she says she’s grown up a bit and should be able to drink it.

サナエ:: 「どのへんが大人(おとな)になったのよ。」; “What part of you has grown up?”
ミナ:: 「私(わたし)だっていろいろ成長(せいちょう)してるの！」; “I've grown in lots of ways!”

Key Points

成長(せいちょう) is broad growth or development
- 成長(せいちょう) can refer to emotional, personal, or practical growth, not just getting physically bigger
- That broader meaning fits this teasing conversation about acting more grown-up
いろいろ成長(せいちょう)してる means I have grown in various ways
- 〜してる is the spoken form of 〜している, giving a present result-state meaning
- Mina is claiming that her development is already visible now
私(わたし)だって and の add a defensive insistence
- 私(わたし)だって means “even I” or “me too”, pushing back against being underestimated
- The sentence-final の adds emphasis, like she is insisting that her claim should be taken seriously