contention
source sentence: The combination of high hopes and contention has left many people confused about where those potential treatments stand today, seven years after human embryonic stem cells were isolated and grown in the laboratory.
context clues: example clues, contrast clues, (syn.) optimism, (ant.) pessimism, hesitation
definition: controversy; struggling together in opposition
original sentence: There is often much contention with politicians during elections, especially when money for campaigning is abundant.
