- 1 [transitive, intransitive] (informal) to prepare (something) prep something Prep the vegetables in advance. prep (for something) They're prepping for the SATs.
- 2[transitive] prep somebody (technology) to prepare someone for a medical operation
NAmE//prɛp//Verb Forms present simple I / you / we / they prep
he / she / it preps
past simple prepped
-ing form prepping