sizepromise

noun
UK /ˈsaɪzˌprɒmɪs/
US /ˈsaɪzˌprɑːmɪs/

A sizepromise is when you say how big something will be before it is made.

The builder made a sizepromise that the treehouse would be big enough for four kids.


OTHER MEANINGS

2. A promise made about the size of a product in a shop.

The shop's sizepromise said the shoes would fit a child of six.

3. An agreement between two people about how big something should be.

They made a sizepromise about the length of the new garden fence.

4. A stated size that a company promises to keep.

The toy company's sizepromise means every box holds exactly ten blocks.