co-star
verb /ˈkəʊ stɑː(r)/
  /ˈkəʊ stɑːr/
Verb Forms
| present simple I / you / we / they co-star |    /ˈkəʊ stɑː(r)/   /ˈkəʊ stɑːr/  | 
| he / she / it co-stars |    /ˈkəʊ stɑːz/   /ˈkəʊ stɑːrz/  | 
| past simple co-starred |    /ˈkəʊ stɑːd/   /ˈkəʊ stɑːrd/  | 
| past participle co-starred |    /ˈkəʊ stɑːd/   /ˈkəʊ stɑːrd/  | 
| -ing form co-starring |    /ˈkəʊ stɑːrɪŋ/   /ˈkəʊ stɑːrɪŋ/  | 
- [intransitive] co-star (with somebody) to appear as one of the main actors with somebody in a play or film
- a movie in which Jennifer Lawrence co-stars with Joel Edgerton
 
 - [transitive] co-star somebody (of a film or play) to have two or more famous actors acting in it
- a movie co-starring Jennifer Lawrence and Joel Edgerton