大 U+05927 大
Radical: 大
Decomposition: ⿻一人
Acjk: 大.⿻一1人2
Definition: big, great, vast, large, high
煤 U+07164 煤
Radical: 火
Decomposition: ⿰火某
Acjk: 煤⿰火.4某9
Definition: coal, coke, charcoal, carbon
区 U+0533a 区
Radical: 匸
Decomposition: ⿷匸乂
Acjk: 区⿷匸.:1乂2匸.:1
Definition: area, district, region, ward