Do you not understand the difference between to and for?
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Do you not understand the difference between "prayer" that is worship, and "prayer" that is not worship?
Do you not understand the difference between "praise" that is worship, and "praise" that is not worship?
Do you not understand the difference between "speech" that is worship, and "speech" that is not worship?
Do you not understand the difference between "bowing down" that is worship, and "bowing down" that is not worship? (See Exodus 18:7 for a quick example of the latter.)
Do you not understand the difference between a "friendship embrace", and a "marital embrace"?
A person has to learn to make honest and truthful distinctions between different things, and not try to falsely blur over the truth of those distinctive differences.
"Praise" can be worship, but "praise" does not mean "worship".
Some praise is worship, and some is not.
For example, when you applaud after your kid's class finishes singing a song in the school talent show, you are praising them (but you are not worshipping them). Likewise, when your kid brings home an "A" and you praise him or her for earning that "A", you are not worshipping them.
In the same way, the words "pray/prayer" do not mean "worship" either (in all of their different and distinct definitions).
"Prayer" can be worship, and "prayer" also might not be worship, depending on how the word is being used. "Pray" can mean "to entreat or implore" or "to make a request in a humble manner", or it can also mean to worship, depending on the context in which it is being used.
("Speech" might be worship, and "speech" also might not be worship, depending on how that word is being used also. The same holds true for "bowing down".)
It is essential that you know the context, and how a word is being used, or you will derive the wrong meaning from any sentence, in any language.
"Praying" to Mary, or to other saints, is never worship for faithful Catholics. Anyone who tells you it is is either ignorantly mistaken or flat-out lying.
These links should help you to begin to understand the difference between how those words are truly being used in different contexts. You really should read them.