noun
fountain pen
Standard word for a fountain pen. The reading まんねんひつ is the most common; まんねんぴつ is a variant, and まんねんふで is rare.
父から万年筆をもらった。
I received a fountain pen from my father.
万年筆にインクを入れる。
I fill the fountain pen with ink.
Standard kanji spelling; the most common written form.
From 万年 (ten thousand years, meaning 'long-lasting') + 筆 (writing brush). The name reflects the idea of a pen that can write for a very long time without needing to be dipped in ink.