cliche means a stale,over used expression

veto means to reject

extrovert means an outgoing person

simultaneously means happening at the same time

comprehend means to understand

transition means a change

prominent means outstanding,distinguished,readily noticeable

ethical means moral or right

introvert means a persons whose thoughts are directed mostly inward

profound means deep,intense,intelligent

gobbledygook means words that are confusing and needless official sounding

carcinogenic means cancer-causing