You might be looking for peer, as in peer of the realm. Another possibility might be dear.
glad?
torch
June
Pleasant Pheasant
no because a rhyming word has the same endings but they have different beginnings
The word that rhymes with dot and has a similar meaning is: spot.
crease
Refine
ship trip
pale
slice
Sauce
umm....
Dime and Chime
rare bear
long song
None of these have the same meaning to thorn, but they could relate: horn, torn, worn, corn, born, mourn