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id. abbreviation of "idem" (Latin); the same.
-idae used in the scientific names of zoological families.
Idaho a northwestern U.S. state south and west of Montana. (abbr.: ID)
-ide used in the names of binary chemical compounds and chemical compounds related to or derived from other compounds.
idea anything existing in the mind as a product of mental activity or awareness, such as a conception or image. [6 definitions]
ideal an idea of something in its perfect form or essence. [6 definitions]
idealess combined form of idea.
idealism the pursuit of or belief in noble ideals, principles, and values. [2 definitions]
idealist a person with high or noble principles, goals, or codes of action. [3 definitions]
idealistic of or characteristic of an idealist or idealism.
idealize to conceive or represent in an ideal form; raise to an ideal level; consider to be ideal. [2 definitions]
idealless combined form of ideal.
ideally in conformance with an ideal; perfectly. [2 definitions]
ideate to form a thought or idea of; imagine. [2 definitions]
idée fixe (French) a fixed idea or obsession.
idem (Latin) the same as that previously mentioned (used in footnotes and bibliographies to indicate that a citation comes from the same book, article, page, or the like as the previous citation).
identical the same. [3 definitions]
identical twin either of two twins formed from the splitting of one zygote, or fertilized egg, and sharing the same genotype at birth.
identification the act of identifying a person or thing. [3 definitions]
identify to determine or prove the identity of (someone or something). [4 definitions]
identity all of those characteristics by which a person or thing is known to be himself, herself, or itself. [3 definitions]