glue:sticks::thorns:?????

Beginning letters?

scr,spr,str,thr

This may not be right -- but what about scrape or scratch?

scratch was the right one

Nope, it doesn't fit on mine.

yay scratch fit on mine!

To find the answer to this analogy, we need to understand the relationship between the terms on the left side of the analogy. In this case, the relationship is that glue is a type of adhesive that is found in stick form. Therefore, we need to find an option on the right side of the analogy that fits a similar pattern.

In this analogy, the term "thorns" is being compared to the term "glue sticks." Thorns are sharp, pointed structures found on the stems of certain plants. To find a matching option, we need to look for a term on the right side of the analogy that represents a similar relationship.

One possible option that fits the same pattern is "roses." Roses are a type of flower known for their beautiful appearance, but they also have thorns on their stems. Therefore, the analogy can be completed as:

glue:sticks::thorns:roses