English Meaning & Definitions
To possess immediate, accurate knowledge of a fact, figure, or detail without needing to consult a reference source.
- “I don't know off the top of my head how many employees work in the London office.”
- “She knows offhand exactly which files are missing from the archive.”
English Synonyms & Near Equivalents
Comprehensive Thesaurus Breakdown
Compare formal, informal, literary synonyms and register nuances for “know off”.
The phrase is a colloquial construction derived from the verb 'know' (to possess information) combined with the particle 'off,' which in this context functions as an intensifier or a marker of detachment. It likely evolved from regional dialects where 'off' implies a sense of 'off the top of one's head' or 'offhand,' suggesting a casual or immediate familiarity with a subject.
Think of 'knowing' something so well that you can recite it 'off' the cuff without looking at notes.
Frequently Asked Questions About “know off”
1. What is the meaning of “know off” in English?
In English, know off (verb) is defined as: “To possess immediate, accurate knowledge of a fact, figure, or detail without needing to consult a reference source.”.
2. How do you use “know off” in a sentence?
“I don't know off the top of my head how many employees work in the London office.”
3. What are English synonyms of “know off”?
4. What is the etymology and word origin of “know off”?
The phrase is a colloquial construction derived from the verb 'know' (to possess information) combined with the particle 'off,' which in this context functions as an intensifier or a marker of detachment. It likely evolved from regional dialects where 'off' implies a sense of 'off the top of one's head' or 'offhand,' suggesting a casual or immediate familiarity with a subject.
🇬🇧More English Words to English
View all English words →The base unit of time in the International System of Units (SI), equal to the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom.
A specific duration of time equal to one hour and forty-six minutes and twelve seconds.
The cardinal number equal to one thousand million (1,000,000,000), expressed in scientific notation as 10^9.
A specific duration of time equivalent to one hour and forty-six minutes.