Think vs. Guess — What's the Difference?

To have or formulate in the mind

To predict (a result or an event) without sufficient information.

To reason about or reflect on; ponder

To assume, presume, or assert (a fact) without sufficient information.

To decide by reasoning, reflection, or pondering

To form a correct estimate or conjecture of

To judge or regard; look upon

To suppose; think

To believe; suppose

To make an estimate or conjecture

To expect; hope

To estimate or conjecture correctly.

To intend

An act or instance of guessing.

To call to mind; remember

A conjecture arrived at by guessing.

To visualize; imagine

To reach a partly (or totally) unqualified conclusion.

To devise or evolve; invent

To solve by a correct conjecture; to conjecture rightly.

To bring into a given condition by mental preoccupation

To suppose (introducing a proposition of uncertain plausibility).

To concentrate one's thoughts on; keep as a point of focus

(colloquial) To think, conclude, or decide (without a connotation of uncertainty). Usually in first person: "I guess".

To exercise the power of reason, as by conceiving ideas, drawing inferences, and using judgment

(obsolete) To hit upon or reproduce by memory.

To consider or weigh an idea

A prediction about the outcome of something, typically made without factual evidence or support.

To bring a thought to mind by using the imagination

To form an opinion concerning, without knowledge or means of knowledge; to judge of at random; to conjecture.

To recall a thought or an image to mind

To judge or form an opinion of, from reasons that seem preponderating, but are not decisive.

To have a belief, supposition, or opinion

To solve by a correct conjecture; to conjecture rightly; as, he who guesses the riddle shall have the ring; he has guessed my designs.

To have care or consideration

To hit upon or reproduce by memory.

To use the mind in a certain way

To think; to suppose; to believe; to imagine; - followed by an objective clause.

Requiring much thought to create or assimilate

To make a guess or random judgment; to conjecture; - with at, about, etc.

The act or an instance of deliberate or extended thinking; a meditation.

An opinion as to anything, formed without sufficient or decisive evidence or grounds; an attempt to hit upon the truth by a random judgment; a conjecture; a surmise.

(transitive) To ponder, to go over in one's head.

A message expressing an opinion based on incomplete evidence

(intransitive) To communicate to oneself in one's mind, to try to find a solution to a problem.

An estimate based on little or no information

(intransitive) To conceive of something or someone (usually followed by of; infrequently, by on).

Expect, believe, or suppose;

(transitive) To be of opinion (that); to consider, judge, regard, or look upon (something) as.

Put forward, of a guess, in spite of possible refutation;

(transitive) To guess; to reckon.

Judge tentatively or form an estimate of (quantities or time);

To plan; to be considering; to be of a mind (to do something).

Guess correctly; solve by guessing;

To presume; to venture.

To seem, to appear.

An act of thinking; consideration (of something).

To seem or appear; - used chiefly in the expressions methinketh or methinks, and methought.

To employ any of the intellectual powers except that of simple perception through the senses; to exercise the higher intellectual faculties.

To call anything to mind; to remember; as, I would have sent the books, but I did not think of it.

To reflect upon any subject; to muse; to meditate; to ponder; to consider; to deliberate.

To form an opinion by reasoning; to judge; to conclude; to believe; as, I think it will rain to-morrow.

To purpose; to intend; to design; to mean.

To presume; to venture.

To conceive; to imagine.

To plan or design; to plot; to compass.

To believe; to consider; to esteem.

Act of thinking; a thought.

An instance of deliberate thinking;

Judge or regard; look upon; judge;

Expect, believe, or suppose;

Use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments;

Recall knowledge from memory; have a recollection;

Imagine or visualize;

Focus one's attention on a certain state;

Have in mind as a purpose;

Decide by pondering, reasoning, or reflecting;

Ponder; reflect on, or reason about;

Dispose the mind in a certain way;

Have or formulate in the mind;

Be capable of conscious thought;

Bring into a given condition by mental preoccupation;