About (5)

(Other definitions for circa that I've seen before include "About (a time)" , "Preposition meaning about, usually preceding a date" , "Approximately, around" , "About, say, a date" , "Costa del Sol city" .)

(Other definitions for concerning that I've seen before include "anxiety" , "Worrying; about" .)

(Other definitions for regarding that I've seen before include "Considering" , "With respect to" , "Gazing" , "Concerned with" , "Thinking" .)

(Other definitions for around that I've seen before include "On every side" , "Close to" , "Present; approximately" , "Here and there, sounds circular" , "Somewhere near" .)

(Other definitions for or so that I've seen before include "Approximately" , "roughly" , "Something like" , "More or less" .)

(Other definitions for in re that I've seen before include "Concerning (L)" , "In the matter of (Lat.)" , "With regard to" .)

(Another definition for as to that I've seen is " Concerning".)

(Other definitions for approximately that I've seen before include "More or less" , "Around, thereabouts" , "Circa" , "Roughly" .)