She speculates about the origin of the strange signal during the late-night meeting.

After reviewing the evidence, many historians speculated about the ruler's motives.

Late in the evening, he would often sit by the window and speculate about the meaning of his dreams.

Her research avoided excessive speculativity and focused on verifiable data.

The speculativeness of the hypothesis made it difficult for researchers to design definitive experiments.

The historians cautioned that the speculatings about the ancient rituals were based on limited evidence.

In recent months, speculants flooded the housing market, driving prices to unsustainable highs.

Despite the thin evidence, speculations about the company's future spread quickly.

Speculators flooded the bond market last week, driving yields sharply lower.

Neighbors were speculating about the source of the strange lights in the sky.