Data – Information – Knowledge


noun, plural in form but singular or plural in construction, often attributive

da·​ta | \ ˈdā-tə  , ˈda- also ˈdä-  \

Definition of data

1: factual information (such as measurements or statistics) used as a basis for reasoning, discussion, or calculation

the data is plentiful and easily available— H. A. Gleason, Jr.
comprehensive data on economic growth have been published— N. H. Jacoby

2: information in digital form that can be transmitted or processed
3: information output by a sensing device or organ that includes both useful and irrelevant or redundant information and must be processed to be meaningful



in·​for·​ma·​tion | \ ˌin-fər-ˈmā-shən  \

Definition of information

(1): knowledge obtained from investigation, study, or instruction
b: the attribute inherent in and communicated by one of two or more alternative sequences or arrangements of something (such as nucleotides in DNA or binary digits in a computer program) that produce specific effects
c(1): a signal or character (as in a communication system or computer) representing data
(2): something (such as a message, experimental data, or a picture) which justifies a change in a construct (such as a plan or theory) that represents physical or mental experience or another construct
d: a quantitative measure of the content of information specificallya numerical quantity that measures the uncertainty in the outcome of an experiment to be performed
2: the communication or reception of knowledge or intelligence



knowl·​edge | \ ˈnä-lij  \

Definition of knowledge

(1): the fact or condition of knowing something with familiarity gained through experience or association
(2): acquaintance with or understanding of a science, art, or technique
b(1): the fact or condition of being aware of something
(2): the range of one’s information or understanding

answered to the best of my knowledge

c: the circumstance or condition of apprehending truth or fact through reasoning COGNITION
d: the fact or condition of having information or of being learned
a person of unusual knowledge
2a: the sum of what is known the body of truth, information, and principles acquired by humankind

Further reading: