crystallize (someone's) ideas

Translations
оформить (чьи-то) идеи
The meeting helped to crystallize their ideas for the new campaign.
Встреча помогла оформить их идеи для новой кампании.
Definitions
To clarify or make someone's thoughts or concepts more precise and understandable, often by organizing or refining them into a clear and coherent form.
Words
idea

noun
идея
crystallize

verb
кристаллизоваться