Synonyms for Gulp (same or very similar meaning)
WordNet sense 1 (to swallow hurriedly or greedily or in one draught):
quaff, swigWordNet sense 2 (a spasmodic reflex of the throat made as if in swallowing):
gulpingWordNet sense 3 (a large and hurried swallow):
draft, draughtFrom the ODE community, based on WordNetadd/edit