fixing upon (verb) attribute: ascribe, assign to source
Sinonime: argue,
chew*,
comment, commentate, confab,
confer,
converse,
debate,
declaim, descant,
develop, dilate upon,
dispute, dissert, dissertate,
elaborate,
enlarge,
expand, expatiate,
explain,
expound, give a meeting, harangue, hold forth, lecture,
modulate, orate, perorate,
remark, sermonize,
talk,
treat,
voiceAntonime: be quiet