Known Unknown

B2 8+

Pronunciation: /noʊn ʌnˈnoʊn/

Definitions of known unknown

noun a person, place, thing, or idea

Example Sentences

A1 I have many known unknowns in my life.

A2 She is exploring the world of known unknowns.

B1 The concept of known unknowns is fascinating to me.

B2 Scientists often study known unknowns in their research.

C1 Philosophers ponder the nature of known unknowns in the universe.

C2 The existence of known unknowns challenges our understanding of reality.

adjective describing word that modifies a noun

Example Sentences

A1 The teacher explained the concept of known unknown words in simple terms.

A2 The children were asked to identify the known unknown animals in the picture book.

B1 The scientist conducted research on the known unknown species of plants in the rainforest.

B2 The detective was determined to solve the case by uncovering the known unknown clues.

C1 The historian delved into the archives to uncover the known unknown details of the ancient civilization.

C2 The philosopher contemplated the nature of known unknown truths in the universe.

Examples of known unknown in a Sentence

formal Scientists are constantly studying the known unknowns in the field of quantum physics.

informal We're trying to figure out the known unknowns in this project.

slang It's like we're chasing after the known unknowns in this mystery.

figurative Life is full of known unknowns, like unexpected opportunities waiting to be discovered.

Grammatical Forms of known unknown

past tense

knew

plural

known unknowns

comparative

more known unknown

superlative

most known unknown

present tense

know

future tense

will know

perfect tense

have known

continuous tense

is knowing

singular

known unknown

positive degree

known

infinitive

to know

gerund

knowing

participle

known

Origin and Evolution of known unknown

First Known Use: 1601 year
Language of Origin: English
Story behind the word: The term 'known unknown' is believed to have originated in the field of philosophy and logic, specifically in discussions about epistemology and uncertainty.
Evolution of the word: Over time, the term 'known unknown' has been used in various contexts, including in military strategy and risk management, to refer to things that are recognized as being uncertain or unknowable but can be identified and acknowledged.