A laundry detergent or cleaning composition which comprises a copolymer containing sulfonate groups containing from 1 to 50 mass percent of structural units derived from 1 or more kinds of monomers selected from ether bond containing monomers represented by Formulas and , 50 mass % or more and less than 98 mass % of structural units derived from {HEAD ~ a carboxyl group} containing {TAIL ~ monomer} , and 1 mass % or more and less than 50 mass % of structural units de rived from a sulfonate group containing monomer  
A laundry detergent or cleaning composition which comprises a copolymer containing sulfonate groups containing from 1 to 50 mass percent of structural units derived from 1 or more kinds of monomers selected from ether bond containing monomers represented by Formulas and , 50 mass % or more and less than 98 mass % of structural units derived from { HEAD ~ a carboxyl group } containing { TAIL ~ monomer } , and 1 mass % or more and less than 50 mass % of structural units de rived from a sulfonate group containing monomer
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