A three-letter word I’m sure you know,
I can be on a boat or a sleigh in the snow,
I’m pals with the rain and honor a king,
But my favorite use is attached to a string.
What am I?
A bow. It has three letters, the bow of a boat is the front, bows are found on the presents on Santa’s sleigh, rainbows come with the rain, one bows before a king and a bow and arrow requires a string.