The crossword solution for the term REJECT WITH 'OUT OF' is OPT. OPT stands for 'OUT of Proportion Test' and is a type of test used to determine whether a product or material meets certain standards. It is a form of quality control that is used to ensure that products are safe and meet the required specifications. The test involves measuring the dimensions of a product or material and comparing them to the specified dimensions. If the measurements are OUT of proportion, then the product or material is rejected.