SOP definition

(1) A prescribed procedure to be followed routinely

"Rote memorization has been the educator's standard operating procedure for centuries"

(2) A concession given to mollify or placate

"The offer was a sop to my feelings"

(3) Piece of solid food for dipping in a liquid

(4) Cover with liquid; pour liquid onto

"Souse water on his hot face"

(5) Dip into liquid

"Sop bread into the sauce"

(6) Be or become thoroughly soaked or saturated with a liquid

(7) Give a conciliatory gift or bribe to