To be certain is to have the property of certainty.
Certain may also refer to
A convention is a set of agreed, stipulated, or generally accepted standards, social norms, or other criteria, often taking the form of a custom.
Null may refer to:
Theme or themes may refer to:
English grammar is the set of structural rules of the English language. This includes the structure of words, phrases, clauses, sentences, and whole texts.
Medicare may refer to several publicly funded health insurance programs:
Public school may refer to:
Dean may refer to:
Cassette may refer to:
Caucasian may refer to:
In pharmacology, an adjuvant is a drug or other substance, or a combination of substances, that is used to increase the efficacy or potency of certain drugs. Specifically, the term can refer to:
A crow is a bird of the genus Corvus, or more broadly a synonym for all of Corvus. The word "crow" is used as part of the common name of many species. The related term "raven" is not linked scientifically to any certain trait, but is rather a general grouping for larger species of Corvus.
Freedom of Information Act may refer to the following legislations in different jurisdictions which mandate the national government to disclose certain data to the general public upon request:
Proving a negative or negative proof may refer to:
A Google Account is a user account that is required for access, authentication and authorization to certain online Google services. It is also often used as single sign-on for third party services.
Test(s), testing, or TEST may refer to:
Dualism most commonly refers to:
Diagnosis is the identification of the nature and cause of a certain phenomenon. Diagnosis is used in many different disciplines, with variations in the use of logic, analytics, and experience, to determine "cause and effect". In systems engineering and computer science, it is typically used to determine the causes of symptoms, mitigations, and solutions.
Nonconformity or nonconformism may refer to:
Undefined may refer to:
Chihaya refers to certain articles of clothing worn in Japanese culture.