1
Offer a hypothesis
Propose an explanation before evidence is decisive.
Example
Researchers speculate that drought prompted the migration.
speculate
/ˈspɛkjʊleɪt/ · SPEK-yuh-laytverb
To form a theory or guess without firm supporting evidence.
Use speculate when the context supports this precise sense: to form a theory or guess without firm supporting evidence.
What speculate Really Means
The word becomes easier to use when its closely related senses are separated and compared.
2
Consider possibilities
Think about uncertain future outcomes.
Example
The essay speculates about how the technology might evolve.
3
Trade for uncertain gain
Buy or sell in hope of profiting from price changes.
Example
Investors speculated in land near the proposed railway.
Use speculate Naturally
Notice how the surrounding noun or clause reveals the exact shade of meaning.
Researchers speculate that drought prompted the migration.
The essay speculates about how the technology might evolve.
Investors speculated in land near the proposed railway.
Precision Matters
Speculate overlaps with several common words, but each carries a different emphasis.
speculate
vs.Means to form a theory or guess without firm supporting evidence.
conjecture
Means a tentative conclusion based on incomplete evidence.
speculate
vs.Means to form a theory or guess without firm supporting evidence.
infer
Means to reach a conclusion from evidence and reasoning rather than direct statement.
speculate
vs.Means to form a theory or guess without firm supporting evidence.
substantiate
Means to support or establish a claim with evidence.
speculate
vs.Means to form a theory or guess without firm supporting evidence.
assert
Means to state or defend a claim confidently and directly.
Test speculate in Context
The explanation must remain tentative because firm evidence is absent.
1
Because the inscription is incomplete, scholars can only ___ about the ruler’s motive; the surviving text does not settle the question.