CEDICT
Wiktionary
受液體浸泡。宋.范質〈戒兒姪〉詩:「黃河潤九里,草木皆浸漬。」引申為積久而發生效用。漢.孔融〈臨終〉詩:「三人成市虎,浸漬解膠漆。」
重編國語辭典
放入液體浸泡
維基詞典
He was completely engrossed in the book.
Source: Tatoeba
He dipped his spoon into the soup.