SEGNARE

 I will now try a different and, I hope, more promising line. 

If we can elucidate the meaning of

"U meant something (on a particular occasion)" and

"U meant that so-and-so (on a particular occasion)" and of

"U meant something by a (on a particular occasion)" and

"U meant by x that so-and-so (on a particular occasion)," 

this might reasonably be expected to help us with

"x means (timeless) something (that so-and-so)"

"U

means (timeless) by x something (that so-and-so)," 

and with the explication of "means the same as," "understands," "entails," and so on.