Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun placebo

2 senses of placebo

Sense 1
placebo -- (an innocuous or inert medication; given as a pacifier or to the control group in experiments on the efficacy of a drug)
       => medicine, medication, medicament, medicinal drug -- ((medicine) something that treats or prevents or alleviates the symptoms of disease)

Sense 2
placebo -- ((Roman Catholic Church) vespers of the office for the dead)
       => vesper -- (a late afternoon or evening worship service)