This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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verb-intransitive. To beat rapidly or violently, as the heart; pound.

verb-intransitive. To vibrate, pulsate, or sound with a steady pronounced rhythm: boat engines throbbing.

n. The act of throbbing; a beating, palpitation, or vibration.

v. To pound or beat rapidly or violently

v. To vibrate or pulsate with a steady rhythm

n. A beating, vibration or palpitation

verb-intransitive. To beat, or pulsate, with more than usual force or rapidity; to beat in consequence of agitation; to palpitate; -- said of the heart, pulse, etc.

n. A beat, or strong pulsation, as of the heart and arteries; a violent beating; a papitation

To beat or pulsate, as the heart, but with increased or quickened force or rapidity; palpitate.

To quiver or vibrate.

n. A beat or strong pulsation; a violent beating, as of the heart and arteries; a palpitation: as, a throb of pleasure or of pain.

n. a deep pulsating type of pain

n. an instance of rapid strong pulsation (of the heart)

v. tremble convulsively, as from fear or excitement

v. expand and contract rhythmically; beat rhythmically

v. pulsate or pound with abnormal force

"As I stood waiting and listening for the enemy's order to attack, I could feel my heart go _throb, throb, throb, throb_, so hard that I seemed to be hearing it at the same time making a dull echo in my brain."

throbbed    throbbing    throbs   

hurting    pain    beat    heartbeat    pulsation    pulse    tremble    thump    pound   

throbbing    throbbed   

throbbed    throbbing    throbbingly    throbber    heartthrob   

palpitate    papitation    pulsation    pulsate   

Bob    Cobb    Job    Punjab    Rob    blob    bob    cob    cobb    dob   

ache    tremor    rumble    surge    thud    thrill    tingle    twinge    murmur    vibration