An Epic
Masterpiece, Masterwork
noun
The big make! What is your big make? Bigger than anything else. It is your epic (as in an epic that you write). It's your masterpiece.
This is a jukugo word, which usually means on'yomi readings from the kanji. Since 大 has two on'yomi readings, here's a mnemonic to help you remember which one to use:
Did you know that there's an epic about a tie sack (たいさく)? It's a masterpiece about a magic sack that produces tie after tie after tie. A bit like The Magic Porridge Pot, but with a sack and ties instead.
大作を作る
to create a masterpiece
大作を見る
to watch a great work, to see a masterpiece
大作をかく
to write a masterpiece, to draw a masterpiece
「サイコ」はヒッチコックの大作だ。
"Psycho" is Hitchcock's magnum opus.
「スターウォーズ エピソードI」は1999年のアメリカ一の大作でした。
"Star Wars: Episode I" was the most epic American film of 1999.
もう自分では大作のアイディアは考えられない。
I can't come up with any ideas for a masterpiece anymore.