/ ˈaɪdieɪt; NAmE / noun ( formal )
1.
[ vn ] to form an idea of sth; to imagine sth
2.
[ v ] to form ideas; to think
► idea·tion / ˌaɪdiˈeɪʃn; NAmE / noun [ U ]
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WORD ORIGIN
late 17th cent.: from medieval Latin ideat- formed as an idea, from the verb ideare , via Latin from Greek idea form, pattern, from the base of idein to see.