intrude
verb /ɪnˈtruːd/
  /ɪnˈtruːd/
(formal)Verb Forms
| present simple I / you / we / they intrude |    /ɪnˈtruːd/   /ɪnˈtruːd/  | 
| he / she / it intrudes |    /ɪnˈtruːdz/   /ɪnˈtruːdz/  | 
| past simple intruded |    /ɪnˈtruːdɪd/   /ɪnˈtruːdɪd/  | 
| past participle intruded |    /ɪnˈtruːdɪd/   /ɪnˈtruːdɪd/  | 
| -ing form intruding |    /ɪnˈtruːdɪŋ/   /ɪnˈtruːdɪŋ/  | 
- [intransitive] to go or be somewhere where you are not wanted or are not supposed to be
- I'm sorry to intrude, but I need to talk to someone.
 - intrude into/on/upon somebody/something legislation to stop newspapers from intruding on people’s private lives
 - We should not intrude upon their private grief.
 
 - [intransitive] intrude (on/into/upon something) to enter into something in a way that is not wanted or to have an unpleasant effect on it
- The sound of the telephone intruded into his dreams.
 
Extra Examples- His father's image had begun to intrude on his consciousness at odd moments.
 - Personal, subjective elements should not be allowed to intrude.
 
 
Word Originmid 16th cent. (in the sense ‘usurp an office or right’; originally as entrude): from Latin intrudere, from in- ‘into’ + trudere ‘to thrust’.