F2L pair
From Speedsolving.com Wiki
The term F2L pair refers to a corner piece and an edge piece which are paired together and then placed between the cross edges and the edges' centers in order to solve 1/4 of the F2L step each in CFOP or other related methods such as ZB and CFCE, leading to the completion of the F2L step.
Approaches to creating F2L pairs varies between cases and methods. See F2L Approaches.
