A beef rice bowl is a common quick meal in Japanese restaurants.
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丼 is an old variant of 井 (a well; the added dot is the splash of a dropped stone), now obsolete in that sense in Chinese. Its only living use is the Japanese loan donburi (rice bowl), read dòng in Taiwan, as in 牛丼 (beef bowl) and similar dish names.
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The 井-variant sense is purely classical; the rice-bowl sense is a modern Taiwan loanword, rare in Mainland Chinese.
The frame is 井, a picture of the wooden cribbing around a well-mouth. 丼 is 井 with a dot added inside; the bowl-shaped enclosure later suited the borrowed 'rice bowl' meaning.
The single dot in the center is a marker, traditionally read as the splash of a stone dropped into the well. It is the one feature that distinguishes 丼 from plain 井.
No stroke data for 丼; the glyph shown is your device font, so component strokes can't be highlighted.