Predict vs. Speculate

Difference Between Predict and Speculate
Predictverb
To state, tell about, or make known in advance, especially on the basis of special knowledge
predicted an active hurricane season because of warmer ocean-surface temperatures.Speculateverb
To engage in a course of reasoning often based on inconclusive evidence; conjecture or theorize.
Predictverb
To foretell something.
Speculateverb
To engage in the buying or selling of a commodity with an element of risk on the chance of profit.
Predictverb
(transitive) To make a prediction: to forecast, foretell, or estimate a future event on the basis of knowledge and reasoning; to prophesy a future event on the basis of mystical knowledge or power.
Speculateverb
To assume to be true without conclusive evidence
speculated that high cholesterol was a contributing factor to the patient's health problems.Predictverb
To imply.
Speculateverb
To think, meditate or reflect on a subject; to consider, to deliberate or cogitate.
Predictverb
(intransitive) To make predictions.
Speculateverb
(intransitive) To make an inference based on inconclusive evidence; to surmise or conjecture.
Predictverb
To direct a ranged weapon against a target by means of a predictor.
Speculateverb
To make a risky trade in the hope of making a profit; to venture or gamble.
Predictnoun
(obsolete) A prediction.
Speculateverb
To anticipate which branch of code will be chosen and execute it in advance.
Predictverb
make a prediction about; tell in advance;
Call the outcome of an electionSpeculateverb
to believe especially on uncertain or tentative grounds;
Scientists supposed that large dinosaurs lived in swampsPredictverb
indicate by signs;
These signs bode bad newsSpeculateverb
talk over conjecturally, or review in an idle or casual way and with an element of doubt or without sufficient reason to reach a conclusion;
We were speculating whether the President had to resign after the scandalSpeculateverb
reflect deeply on a subject;
I mulled over the events of the afternoonphilosophers have speculated on the question of God for thousands of yearsThe scientist must stop to observe and start to excogitateSpeculateverb
invest at a risk;
I bought this house not because I want to live in it but to sell it later at a good price, so I am speculating