say it: RED-ee-nuhs
readiness is a noun meaning "the state of having been made ready or prepared for use or action (especially military action)". It carries 4 recorded senses.
the state of having been made ready or prepared for use or action (especially military action)
“putting them in readiness”
“their preparation was more than adequate”
military
prompt willingness
“readiness to continue discussions”
“they showed no eagerness to spread the gospel”
“they disliked his zeal in demonstrating his superiority”
“he tried to explain his forwardness in battle”
(psychology) being temporarily ready to respond in a particular way
“the subjects' set led them to solve problems the familiar way and to overlook the simpler solution”
“his instructions deliberately gave them the wrong set”
psychology
a natural effortlessness
“they conversed with great facility”
“a happy readiness of conversation”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for readiness come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.