be+sure+or+certain+of
81sure — 1. adjective /ʃʊə(ɹ),ʃʊɹ,ʃɔɹ,ʃɝ,ʃɔ/ a) Physically secure and certain, non failing, reliable. b) Certain in ones knowledge or belief. Syn: certain, failsafe …
82CERTAIN — (Roget s Thesaurus II) Index certain noun certainty, decision, fate (2), sureness adjective certain (2), decided, definite, fated, sure (2) verb …
83certain — [13] Certain comes ultimately from Latin certus ‘sure, fixed’, which derived from the past participle of the verb cernere ‘decide’. The Latin adjective was extended in Vulgar Latin to *certānus, which passed into English via Old French certain.… …
84sure — I. a. 1. Certain, confident, positive, assured, fully convinced. 2. Safe, secure, stable, firm, steady, trustworthy. 3. Infallible, unfailing, never failing, strong, permanent, enduring, abiding, fast, indisputable, certain. 4. Certain, unerring …
85certain — [13] Certain comes ultimately from Latin certus ‘sure, fixed’, which derived from the past participle of the verb cernere ‘decide’. The Latin adjective was extended in Vulgar Latin to *certānus, which passed into English via Old French certain.… …
86sure thing — noun Date: 1767 one that is certain to succeed ; a sure bet …
87sure as eggs is eggs — adverb Absolutely certain. At this time of year, sure as eggs is eggs, the TV starts filling with Christmas ads for toys …
88sure-fire — adjective certain to work That hat should be a sure fire way to spot him in a crowd …
89sure-fire — Australian Slang certain to succeed; assured: He is a sure fire winner for tomorrow s race …
90sure-fire — If something is sure fire, it is certain to succeed. ( Surefire is also used.) (Dorking School Dictionary) …