Suspect vs. Doubt

Difference Between Suspect and Doubt
Suspectverb
(transitive) To imagine or suppose (something) to be true, or to exist, without proof.
to suspect the presence of diseaseDoubtnoun
Uncertainty, disbelief.
There was some doubt as to who the child's real father was.Suspectverb
(transitive) To distrust or have doubts about (something or someone).
to suspect the truth of a storyDoubtnoun
(India) A query; a point of uncertainty.
I have a doubt about how to convert this code to JavaScript.Suspectverb
(transitive) To believe (someone) to be guilty.
I suspect him of being the thief.Doubtverb
(ambitransitive) To lack confidence in; to disbelieve, question, or suspect.
He doubted that was really what you meant.Suspectverb
(intransitive) To have suspicion.
Doubtverb
(archaic) To fear; to suspect.
1798, w:William Short (American ambassador), [https://books.google.fr/books?id=x_5ZDwAAQBAJ&pg=PA154&lpg=PA154&dq=housa+%22niger+River%22+-house&source=bl&ots=gGqQVINS4J&sig=kmYvmWvD_gVAjhb6otz-ER7sRUI&hl=en&sa=X&ved=2ahUKEwiN6PPCjNvcAhUyzoUKHZXUB6YQ6AEwEHoECDsQAQ#v=onepage&q=housa%20%22niger%20River%22%20-house&f=false letter to Thomas Jefferson]1819, Lord Byron, Don Juan, I.186:Suspectverb
To look up to; to respect.
Doubtverb
(obsolete) To fear.
Suspectnoun
A person who is suspected of something, in particular of committing a crime.
Doubtverb
(obsolete) To fill with fear; to affright.
Suspectadjective
Viewed with suspicion; suspected.
Doubtnoun
the state of being unsure of something
Suspectadjective
(nonstandard) Viewing with suspicion; suspecting.
Doubtnoun
uncertainty about the truth or factuality of existence of something;
the dubiousness of his claimthere is no question about the validity of the enterpriseSuspectnoun
someone who is under suspicion
Doubtverb
consider unlikely or have doubts about;
I doubt that she will accept his proposal of marriageSuspectnoun
a person or institution against whom an action is brought in a court of law; the person being sued or accused
Doubtverb
lack confidence in or have doubts about;
I doubt these reportsI suspect her true motivesshe distrusts her stepmotherSuspectverb
imagine to be the case or true or probable;
I suspect he is a fugitiveI surmised that the butler did itSuspectverb
regard as untrustworthy; regard with suspicion; have no faith or confidence in
Suspectverb
hold in suspicion; believe to be guilty;
The U.S. suspected Bin Laden as the mastermind behind the terrorist attacksSuspectadjective
not as expected;
there was something fishy about the accidentup to some funny businesssome definitely queer goings-ona shady dealher motives were suspectsuspicious behavior