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To develop over time. By the end of the meeting, our plan for the new project had begun to take form. An idea was taking form in her mind as to how she might remain in her father's will.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
take ˈform(formal) gradually form into a particular shape; gradually develop: In her body a new life was taking form.
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