Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class IV. Words Relating to the Intellectual Faculties
Division (I) Formation of Ideas
Section V. Results of Reasoning

484. Belief.

   NOUN:BELIEF; credence; credit; assurance; faith, trust, troth, confidence, presumption, sanguine expectation (hope) [See Hope]; dependence on, reliance on.
  CONVICTION, persuasion, convincement, plerophory [rare], self-conviction; certainty [See Certainty]; opinion, mind, view; conception, thinking; impression (idea) [See Idea]; surmise [See Supposition]; conclusion (judgment) [See Judgment].
  TENET, dogma, principle, persuasion, views, way of thinking; popular belief (assent) [See Assent].
  firm -, implicit -, settled -, fixed -, rooted -, deep-rooted -, staunch -, unshaken -, steadfast -, inveterate -, calm -, sober -, dispassionate -, impartial -, well-founded- -belief, – opinion &c.; uberrima fides [L.].
  DOCTRINE, system of opinions, school, articles, canons; article -, declaration -, profession- of faith; tenets, credenda, creed, credo, thirty-nine articles (orthodoxy) [See Theology]a; gospel, gospel truth; catechism; assent [See Assent]; propaganda (teaching) [See Teaching].
  CREDIBILITY (probability) [See Probability].
   VERB:BELIEVE, credit; give -faith, – credit, – credence- to; see, realize; assume, receive; set down for, take for; have it, take it; consider, esteem, presume.
  count -, depend -, calculate -, pin one’s faith -, reckon -, lean -, build -, rely -, rest- upon; cast one’s bread upon the waters; lay one’s account for; make sure of.
  make oneself easy -about, – on that score; take on -trust, – credit; take for -granted, – gospel; allow -, attach- some weight to.
  KNOW, – for certain; be in the know [slang]; have -, make- no doubt; doubt not; be -, rest- -assured &c. adj.; persuade -, assure -, satisfy- oneself; make up one’s mind.
  CONFIDE IN, believe in, put one’s trust in; give one credit for; place -, repose-implicit confidence in; take one’s word for, take at one’s word; place reliance on, rely upon, swear by, regard to.
  THINK, hold; take, take it; opine, be of opinion, conceive, trow [archaic], ween [archaic], fancy, apprehend; have -, hold -, possess -, entertain -, adopt -, imbibe -, embrace -, get hold of -, hazard -, foster -, nurture -, cherish- -a belief, – an opinion &c. n.
  view as, consider as, take as, hold as, conceive as, regard as, esteem as, deem as, look upon as, account as, set down as; surmise [See Supposition].
  get -, take- it into one’s head; come round to an opinion; swallow (credulity) [See Credulity].
  PERSUADE; cause to be believed &c. v.; satisfy, bring to reason, have the ear of, gain the confidence of, assure; convince, convict, convert; wean, bring round; bring -, win- over; indoctrinate (teach) [See Teaching]; cram down the throat; produce -, carry- conviction; bring -, drive- home to.
  FIND CREDENCE, go down, pass current; be received &c. v., be current &c. adj.; possess -, take hold of -, take possession of- the mind.
   ADJECTIVE:BELIEVING &c. v.; certain, sure, assured, positive, cocksure [colloq.], satisfied, confident, unhesitating, convinced, secure.
  under the impression; impressed -, imbued -, penetrated- with.
  CONFIDING, trustful, suspectless [obs.], unsuspecting, unsuspicious, void of suspicion; credulous [See Credulity]; wedded to.
  BELIEVED &c. v.; accredited, putative; unsuspected, trusted, undoubted.
  worthy of -, deserving of -, commanding- -belief, – confidence; credible, reliable, trustworthy, to be depended on; satisfactory; probable [See Probability]; fiducial, fiduciary; persuasive, impressive.
  DOCTRINAL, relating to belief.
   ADVERB:  Adj. IN THE OPINION OF, in the eyes of; me judice [L.]; meseems [archaic], methinks [archaic]; to the best of one’s belief; in my opinion, in my judgment, according to my belief; I dare say, I doubt not, I have no doubt, I am sure; cocksure, sure enough (certainty) [See Certainty]; depend -, rely- upon it; be -, rest- assured; I’ll warrant you (affirmation) [See Affirmation].
  1. Experto credite.—Vergil
  2. Fata viam invenient.
  3. Justitiæ soror incorrupta Fides.
  4. Live to explain thy doctrine by thy life.—Prior
  5. Stands not within the prospect of belief.—Macbeth
  6. Tarde quæ credita lædunt credimus.—Ovid
  7. Vide et crede.
  8. One in whom persuasion and belief Had ripened into faith, and faith become A passionate intuition.—Wordsworth
  9. Faith, that lodestar of the ghost.—Masefield
  10. Nothing is so firmly believed as that we least know.—Montaigne
  11. Belief consists in accepting the affirmations of the soul; unbelief, in denying them.—Emerson