Noun

• S: (n) decrease, diminution, reduction, step-down (the act of decreasing or reducing something)
• direct hyponym / full hyponym
• direct hypernym / inherited hypernym / sister term
• antonym
• derivationally related form
• S: (n) reduction, reducing (any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen); always occurs accompanied by oxidation of the reducing agent)
• S: (n) reduction, simplification (the act of reducing complexity)