That is, as a rule.

Not always.

If I find a learnable phrase that has an imposing look and warbles musically along I do not care to know the meaning of it; I pay it out to the first applicant, knowing that if I pronounce it carefully HE will understand it, and that's enough.
Yesterday's word was AVANTI.

It sounds Shakespearian, and probably means Avaunt and quit my sight.

Today I have a whole phrase: SONO DISPIACENTISSIMO.