WordNet (r) 3.0 (2006):

minimum wage
    n 1: the lowest wage that an employer is allowed to pay;
         determined by contract or by law

Moby Thesaurus II by Grady Ward, 1.0:

37 Moby Thesaurus words for "minimum wage":
   base pay, compensation, dismissal wage, earnings, escalator clause,
   escalator plan, financial remuneration, gross income,
   guaranteed annual wage, hire, income, living wage, net income, pay,
   pay and allowances, payment, payroll, portal-to-portal pay,
   purchasing power, real wages, remuneration, salary, severance pay,
   sliding scale, take-home, take-home pay, taxable income,
   total compensation, wage, wage control, wage freeze,
   wage reduction, wage rollback, wage scale, wages,
   wages after deductions, wages after taxes