Etymology: (1400–50; late ME idee < MF < LL < Gk idéā form, kind, sort)
Definition of 'Idea'
Princeton's WordNet
1. (noun)idea, thought the content of cognition; the main thing you are thinking about "it was not a good idea"; "the thought never entered my mind"
2. (noun)mind, idea your intention; what you intend to do "he had in mind to see his old teacher"; "the idea of the game is to capture all the pieces"
3. (noun)idea a personal view "he has an idea that we don't like him"
4. (noun)estimate, estimation, approximation, idea an approximate calculation of quantity or degree or worth "an estimate of what it would cost"; "a rough idea how long it would take"
5. (noun)theme, melodic theme, musical theme, idea (music) melodic subject of a musical composition "the theme is announced in the first measures"; "the accompanist picked up the idea and elaborated it"
1. (noun)idea sth you think of; = thought I have an idea - let's go to the park.; At first they didn't know what to do. Then Shirley had an idea.
2. idea an opinion His ideas about married life are a little old-fashioned.; her interesting ideas on religion
3. idea understanding or knowledge of sth He has no idea how to get there.; Can you give me a rough idea of what he looks like.
Definition of 'Idea'
Webster Dictionary
1. (noun)Idea the transcript, image, or picture of a visible object, that is formed by the mind; also, a similar image of any object whatever, whether sensible or spiritual
2. (noun)Idea a general notion, or a conception formed by generalization
3. (noun)Idea hence: Any object apprehended, conceived, or thought of, by the mind; a notion, conception, or thought; the real object that is conceived or thought of
4. (noun)Idea a belief, option, or doctrine; a characteristic or controlling principle; as, an essential idea; the idea of development
5. (noun)Idea a plan or purpose of action; intention; design
6. (noun)Idea a rational conception; the complete conception of an object when thought of in all its essential elements or constituents; the necessary metaphysical or constituent attributes and relations, when conceived in the abstract
7. (noun)Idea a fiction object or picture created by the imagination; the same when proposed as a pattern to be copied, or a standard to be reached; one of the archetypes or patterns of created things, conceived by the Platonists to have excited objectively from eternity in the mind of the Deity
Definitions of Idea 
Afrikaans: idee
Arabic: فِكْرَه
Bulgarian: идея
Brazilian: ideia
Czech: nápad
German: die Meinung
Danish: idé
Greek: γνώμη
Spanish: creencia, impresión
Estonian: arvamus
Farsi: نظر
Finnish: ajatus
French: idée
Hebrew: רַעיוֹן
Hindi: विचार
Croatian: misao
Hungarian: elképzelés
Indonesian: gagasan
Icelandic: hugmynd
Italian: idea
Japanese: 考え
Korean: 생각, 의견
Lithuanian: nuomonė
Latvian: ideja; doma
Malay: idea
Dutch: idee
Norwegian: idé, tanke, forestilling
Polish: przeświadczenie
Persian: نظر
Pashto: مفكوره، عقيده، نقشه، پروژ
Portuguese: ideia
Romanian: idee
Russian: мнение
Slovak: predstava, tušenie
Slovenian: mnenje
Serbian: mišljenje
Swedish: uppfattning,åsikt
Thai: ความคิด
Turkish: fikir, düşünce, görüş
Taiwanese: 意見，想法
Ukrainian: думка, гадка
Urdu: تصور
Vietnamese: quan niệm; ý tưởng
Chinese: 意见
