Difference between Speculate and Conjecture

SPECULATE vs CONJECTURE: NOUN

A message expressing an opinion based on incomplete evidence
Reasoning that involves the formation of conclusions from incomplete evidence
A hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence)
An opinion or conclusion based on guesswork.
The act of forming an opinion without definite proof; a supposition made to account for an ascertained state of things, but as yet unverified; an opinion formed on insufficient presumptive evidence; a surmise; a guess.
Suspicious surmise; derogatory supposition or presumption.
Synonyms Supposition, hypothesis, theory.
An opinion, or judgment, formed on defective or presumptive evidence; probable inference; surmise; guess; suspicion.
A statement or an idea which is unproven, but is thought to be true; a guess.
A supposition based upon incomplete evidence; a hypothesis.
A statement likely to be true based on available evidence, but which has not been formally proven.
Interpretation of signs and omens.
Opinion or judgment based on inconclusive or incomplete evidence; guesswork.

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
Reflect deeply on a subject
Invest at a risk
To think, meditate or reflect on a subject; to deliberate or cogitate
To make an inference based on inconclusive evidence; to surmise or conjecture
To make a risky trade in the hope of making a profit; to venture or gamble
To believe especially on uncertain or tentative grounds

To consider by turning a subject in the mind, and viewing it in its different aspects and relations; to meditate; to contemplate; to theorize
To view subjects from certain premises given or assumed, and infer conclusions respecting them a priori.
To purchase with the expectation of a contingent advance in value, and a consequent sale at a profit; -- often, in a somewhat depreciative sense, of unsound or hazardous transactions.
To engage in the buying or selling of a commodity with an element of risk on the chance of profit.
To engage in a course of reasoning often based on inconclusive evidence; conjecture or theorize.
To assume to be true without conclusive evidence.

To make conjectures; to surmise; to guess; to infer; to form an opinion; to imagine.
To make a conjecture.
To judge or conclude by conjecture; guess.

To arrive at by conjecture; to infer on slight evidence; to surmise; to guess; to form, at random, opinions concerning.

To invest money for profit upon an uncertainty; take the risk of loss in view of possible gain; make a purchase or purchases, as of something liable to sudden fluctuations in price or to rapid deterioration, on the chance of selling at a large advance: as, to speculate in stocks.
To take a discursive view of a subject or subjects; note diverse aspects, relations, or probabilities; meditate; conjecture: often implying absence of definite method or result.
To pursue truth by thinking, as by mathematical reasoning, by logical analysis, or by the review of data already collected.
To take a discriminating view of; consider attentively; speculate upon; examine; inspect: as, to speculate the nature of a thing.
To view as from a watch-tower or observatory; observe.

To form (an opinion or notion) upon probabilities or upon slight evidence; guess: generally governing a clause.
Synonyms Imagine, Conjecture, Surmise, Guess, Presume, fancy, divine. Imagine literally expresses pure speculation, and figuratively expresses an idea founded upon the slightest evidence: as, I imagine that you will find yourself mistaken. Conjecture is something like a random throw of the mind; it turns from one possibility to another, and perhaps selects one, almost arbitrarily. Surmise has often the same sense as conjecture; it sometimes implies a suspicion, favorable or otherwise: as, I surmise that his motives were not good. Guess suggests a riddle, the solution of which is felt after by the mind—a question, as to which we offer an opinion, but not with confidence, because the material for a judgment is confessedly insufficient. To presume is to base a tentative or provisional opinion on such knowledge as one has, to be held until it is modified or overthrown by further information.
To form conjectures; surmise; guess.

Mull over, Hypothecate, Job, Meditate, Muse, Reflect, Suppose, Ruminate, Mull, Contemplate, Ponder, Theorise, Conjecture, Hypothesize, Theorize

Suspicion, Premise, Guesswork, Assumption, Hypothecate, Hypothesize, Suppose, Guess, Theorise, Theorize, Hypothesis, Surmise, Speculate, Supposition, Speculation

Guess, Believe, Think over, Chew over, Job, Meditate, Muse, Reflect, Suppose, Ruminate, Mull, Contemplate, Ponder, Theorise, Conjecture

Postulate, Hearsay, Hostage, Hedge, Rumour, Suspicion, Premise, Assumption, Suppose, Guess, Theorise, Hypothesis, Speculate, Supposition, Speculation

The NP Bifurcation Hypothesis makes a fine conjecture.
Counterexamples to the Minimum Output Entropy Additivity Conjecture.
Smale that the Lorenz attractor refuted his conjecture.
There is some empirical support for this conjecture.
By contradiction, conclude that the conjecture is true.
If a conjecture is realized it is very difficult to see how it remains a conjecture.
Style crosswords, general knowledge crosswords and cryptic crossword puzzles conjecture synonyms conjecture.
Proof: We use ideas from the Inscribed Angles Conjecture to see why this conjecture is true.
What conjecture means in tamil, conjecture meaning in tamil, conjecture definition, examples and pronunciation of conjecture in tamil language.
Everything beyond that is conjecture; sound conjecture based hopefully on best available knowledge, but conjecture nonetheless.