In classical usage this character means land on which people can settle and live.
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墺 is not used as a standalone word in modern Chinese; classically it means habitable ground, and in southeastern coastal place names it marks a flat patch among hills. It is the earth radical 土 plus the phonetic 奥, the same phonetic in 澳 and 懊.
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Classical and place-name use only; modern Chinese says 地方 for a place to live.
奥 supplies the sound ào and a faint flavour of a sheltered inner nook, fitting a tucked-away habitable spot. The same phonetic gives the reading in 澳 and 懊.
No stroke data for 墺; the glyph shown is your device font, so component strokes can't be highlighted.