solidify

Meanings

1. 1
   verb

   to become solid, or to make a liquid or soft substance become solid

   The melted wax began to solidify as it cooled.

2. 2
   verb

   to make an agreement, position, relationship, or idea stronger, more definite, or firmly established

   The successful project solidified her reputation as a careful engineer.

Borrowed from French solidifier, formed from solide, 'solid,' + -ifier, corresponding to English solid + -ify. The literal change from liquid or soft matter to a solid state gave rise to the figurative sense 'make firm, definite, or secure.'

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