This question checks familiarity with common compound verbs built on the prefix "out". Words like outshine, outnumber, and outrun are all part of everyday English vocabulary. Outshine means to perform or appear better than others. Outnumber means there are more of one group than another. Outrun means to move faster than someone else or to escape by speed.
The word "bug" behaves differently. There is no established word "outbug" in the English language, so it cannot join with "out" the way the other three options do.
Testing each option against common usage shows Shine, Number, and Run pass the test while Bug fails it. The correct answer is therefore option 3, Bug.
Which of the following does not make a sensible word/phrase when added to the given word?
Word: FIRE