reckoner
/'reknə/
Definition
- Noun:
- A person who calculates: A "reckoner" is someone skilled at performing mathematical calculations or operating calculating devices.
- A reference book of calculations: A "reckoner" is a handbook or manual containing tables, formulas, or pre-computed results to simplify complex or frequent calculations.
Examples of Usage
Noun (Person):
- In the old accounting firm, he was known as the fastest reckoner.
- Before electronic computers, teams of reckoners were employed for complex scientific computations.
Noun (Book):
- The engineer consulted his reckoner to find the stress values for the steel beam.
- A ready reckoner provides quick answers to common financial calculations like interest and discounts.
Advanced Usage
- "Ready reckoner": This is a common compound term for a specific type of book or chart designed to give immediate results for standard calculations, especially in commerce.
- The shopkeeper used a ready reckoner to quickly calculate the total price including tax.
Variants and Related Words
- Reckon (verb): To calculate or estimate.
- I reckon the total cost will be about fifty dollars.
- Reckoning (noun): The action of calculating or the final settlement of accounts.
- The day of reckoning for the project's budget is next Friday.
Synonyms
- Calculator (for a person): A person who computes.
- Computer (archaic, for a person): One who computes.
- Reference manual / Table book (for a book): A book containing organized data for reference.
Related Phrases
- To be a good/bad reckoner: To be skilled or unskilled at mental arithmetic.
- She's a good reckoner and never needs a calculator at the market.
Related Idioms
- (To be) out in one's reckoning: To have miscalculated or been mistaken in one's estimate.
- If you think we'll finish early, you're out in your reckoning.
Noun
-
a handbook of tables used to facilitate computation
-
an expert at calculation (or at operating calculating machines)
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