Flack and Rigor

Flack noun - Artillery designed to shoot upward at airplanes.

Rigor and flack are semantically related. in complaint topic. In some cases you can use "Rigor" instead a noun "Flack".

Rigor noun - Something that is a cause for suffering or special effort especially in the attainment of a goal.

Flack and rigor are semantically related. Sometimes you can use "Flack" instead a noun "Rigor".

Nearby Words: rigid, rigorous, rigorously, rigour, rigorism