Synonyms for Throb (same or very similar meaning)
WordNet sense 1 (an instance of rapid strong pulsation (of the heart)):
pounding, throbbing
WordNet sense 2 (tremble convulsively, as from fear or excitement):
shiver, shudder, thrill
WordNet sense 3 (expand and contract rhythmically; beat rhythmically):
pulsate, pulse
From the ODE community, based on WordNet
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