Plum or Plumb?
Your choice!
Plum
Exemple : ‘’I have never eaten a plum in my life!’’
The words "plum" and "plumb" are homonyms and are therefore often confused. "Plum" is a type of fruit which has a stone in the middle.
Plumb
Exemple : ‘’We need to plumb the new toilet in.’’
"Plumb" is a verb which is used in relation to fitting devices which use water such as sinks, toilets and baths. It can also be used as an adverb as a synonym of the word "exactly." This usage is informal.