also: アイディア · アィディア
noun
General term for a thought, plan, suggestion, or creative concept. Used in everyday conversation and business contexts.
何かいいアイデアはありますか。
Do you have any good ideas?
彼のアイデアはとても独創的だ。
His idea is very original.
Most common katakana spelling; preferred in modern usage.
Alternate katakana spelling; also widely used but slightly less common than アイデア.
考え is a native Japanese word for 'thought' or 'idea', often more abstract or philosophical. アイデア is a loanword that emphasizes a concrete, creative, or practical suggestion.
発想 refers to a way of thinking, conception, or approach, often used in creative or problem-solving contexts. アイデア is more about a specific idea or suggestion.
Borrowed from English 'idea'. The spelling アイデア reflects a common adaptation of the English pronunciation, while アイディア preserves the original spelling more closely.