/ne?l/UKinformalto make something verycertainordefinite:Australiaseemlikelyto get to thesemis, and awintoday wouldnailit on.SMART Vocabulary: related words and phrasesCertainty
(as) clear as dayidiom
(as) sure as eggs is eggsidiom
and that's flat!idiom
assured
assuredly
decidedly
deffo
definite
definitely
definitive
mistake
nailed on
natch
not miss a beatidiom
not miss/skip a beatidiom
solidity
squarely
watertight
would
you can bet your lifeidiom
See more results ?(Definition ofnail something onfrom theCambridge Advanced Learner's Dictionary & Thesaurus? Cambridge University Press)#https://dictionary.cambridge.org//dictionary/english/nail-on##