- a table of numbers used to facilitate simple calculations, esp one for applying rates of discount, interest, charging, etc, to different sums
WordReference Random House Unabridged Dictionary of American English © 2026
read′y reck′oner,
- Mathematicsreckoner (def. 2).
- 1750–60
Collins Concise English Dictionary © HarperCollins Publishers::
ready reckoner n
'ready reckoner' also found in these entries (note: many are not synonyms or translations):