"Excusation" is not a commonly used word in English, and may not be familiar to many speakers. The word is spelled with the prefix "ex-" meaning "out of" or "away from", followed by the noun "excuse". The pronunciation of "excusation" can be transcribed as /ˌɛkskyuːˈzeɪʃən/, with emphasis on the second syllable. Although the word may not be commonly used, it can be a more precise synonym for "apology" or "justification".