Similar words
argumento
Spanish argumento primarily means "plot," of a story, not a dispute; discusión is the word for an "argument" as a disagreement.
Similar in other languages
Portuguese
argumento
argumento is the Portuguese word for the same thing — both mean "argument."
Portuguese
discussão
discussão is the Portuguese word for the same thing — both mean "argument."
Practice
1 What does discusión mean?
argument
2 Fill the gap: Tuvieron una ___.
Full sentence: Tuvieron una discusión. (They had an argument.)
3 Which fingerprint chart matches discusión?
discusión: neutral register, common frequency, general domain, neutral connotation.