speculation
US
UK speculation n: (conjecture)
SC 推测 tuī cè
TC 推測
TC 推測
SC 推想 tuī cè，tuī xiǎng
She warned us that her answer was only speculation.
speculation n: (business: risky dealing)
SC 投机 tóu jī
TC 投機
TC 投機
SC 投机生意 tóu jī，tóu jī shēng yì
Speculation is said to be driving up the cost of oil.