Buttoning up and Two-by-four

Two-by-four and buttoning up are semantically related. In some cases you can use "Two-by-four" instead an adjective "Buttoning up".

Two-by-four noun - A timber measuring (slightly under) 2 inches by 4 inches in cross section.

Buttoning up and two-by-four are semantically related. Sometimes you can use "Buttoning up" instead an adjective phrase "Two-by-four".