prilog

1. (to a document, email) attachment; annex; enclosure
   U prilogu vam šaljem ugovor. — Please find the contract attached.
   Zaboravio sam da dodam prilog uz mejl. — I forgot to add the attachment to the email.
2. donation; contribution
   Svaki prilog za lečenje deteta je dobrodošao. — Every donation for the child's treatment is welcome.
   To je značajan prilog nauci. — That is a significant contribution to science.
3. (of food) side dish
   Šta želite kao prilog, pomfrit ili pirinač? — What would you like as a side, fries or rice?
4. (in the media) report; segment; piece
   Gledao sam prilog o tome u Dnevniku. — I saw a report about it on the evening news.
5. (in grammar) adverb
   Reč „brzo“ je prilog za način. — The word 'brzo' is an adverb of manner.

In emails, 'attached' is u prilogu.