The words "access" and "excess" are homonyms.

• Homonyms: Words that share the same spelling and pronunciation but have different meanings. "Access" (the ability to approach or enter) and "excess" (a surplus or overabundance) fit this definition perfectly. They sound the same, but mean very different things.

• Synonyms: Words that have similar meanings. Examples of synonyms for "access" could be "entry," "admission," or "approach." Synonyms for "excess" could be "surplus," "overabundance," or "too much."

• Antonyms: Words that have opposite meanings. An antonym for "access" could be "restriction" or "denial." An antonym for "excess" could be "shortage" or "lack."

• Paronyms: a word which is a derivative of another and has a related meaning.

  "‘wisdom’ is a paronym of ‘wise’"