The spelling expresso is mostly considered incorrect, though some sources call it a less common variant. It is common in French and Portuguese. Italy uses the term espresso, substituting s for most x letters in Latin-root words; x is not considered part of the standard Italian alphabet. Italian people commonly refer to it simply as caffè (coffee), espresso being the ordinary coffee to order; the same happens in Portugal (café), with some regional variations (bica in Lisbon and cimbalino traditionally in Porto); in Spain, while café expreso is seen as the more "formal" denomination, café solo (alone, without milk) is the usual way to ask for it when at an espresso bar.
Using valid, well-formatted JSON, generate a list of espresso spellings based on the text provided
[
  "espresso",
  "expresso",
  "coffee",
  "caffè",
  "café",
  "bica",
  "cimbalino",
  "café expreso",
  "café solo"
]