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Drop the right meaning from the below answer box:
 
Answer variants:
Corner
Dirt
Laughter
Schoolyard
 
1.
 \(=\) A school playground
 
2.
 \(=\) A substance, such as mud or dust that soils someone or something
 
3
 \(=\) The action or sound of laughing
 
4
 \(=\) A place or angle where two sides or edges meet