pickle vs difficulty

pickle and difficulty both are nouns.

Word	Noun	Adjective	Verb	Adverb
pickle	Yes	No	Yes	No
difficulty	Yes	No	No	No

As nouns, difficulty is a hypernym of pickle; that is, difficulty is a word with a broader meaning than pickle:

pickle: informal terms for a difficult situation
difficulty: the quality of being almost beyond one's ability to deal with and requiring a great effort to achieve a positive result

Other hypernyms of pickle include difficultness.

pickle (noun)	difficulty (noun)
vegetables (especially cucumbers) preserved in brine or vinegar	an effort that is inconvenient
informal terms for a difficult situation	the quality of being almost beyond one's ability to deal with and requiring a great effort to achieve a positive result

pickle (verb)	difficulty (verb)
preserve in a pickling liquid