moderate, chair, lead -- (preside over; "John moderated the discussion")
moderate -- (make less fast or intense; "moderate your speed")
control, hold in, hold, contain, check, curb, moderate -- (lessen the intensity of; temper; hold in restraint; hold or keep within limits; "moderate your alcohol intake"; "hold your tongue"; "hold your temper"; "control your anger")
mince, soften, moderate -- (make less severe or harsh; "He moderated his tone when the students burst out in tears")
tone down, moderate, tame -- (make less strong or intense; soften; "Tone down that aggressive letter"; "The author finally tamed some of his potentially offensive statements")
moderate -- (being within reasonable or average limits; not excessive or extreme; "moderate prices"; "a moderate income"; "a moderate fine"; "moderate demands"; "a moderate estimate"; "a moderate eater"; "moderate success"; "a kitchen of moderate size"; "the X-ray showed moderate enlargement of the heart")
moderate, temperate -- (not extreme; "a moderate penalty"; "temperate in his response to criticism")
moderate, restrained -- (marked by avoidance of extravagance or extremes; "moderate in his demands"; "restrained in his response")