Questions & Answers about این مهمانی خیلی رسمی است.
How does the word مهمانی relate to the Farsi word for "guest"?
The word for "guest" is مهمان (mehmân). By adding the suffix -i (ی), we turn the noun for a person into a noun for the event itself. This gives us مهمانی (mehmâni), meaning a "party" or "gathering".
Is the word رسمی built the same way as مهمانی?
They use the same suffix -i (ی), but it does a different job here. In مهمانی, the suffix creates an abstract noun. In رسمی, it attaches to the noun رسم (rasm, meaning "custom" or "tradition") to create an adjective meaning "formal" or "official".
How would this sentence be pronounced informally in everyday speech?
In spoken Farsi, the long "a" sound before an "n" often shifts to a "u" sound, so مهمانی (mehmâni) becomes مهمونی (mehmuni). Also, the verb است (ast) drops its first letters and attaches to the previous word as an -e sound. Informally, you will hear: این مهمونی خیلی رسمیه (in mehmuni kheyli rasmi-e).