disillusion
verb /ˌdɪsɪˈluːʒn/
  /ˌdɪsɪˈluːʒn/
Verb Forms
| present simple I / you / we / they disillusion |    /ˌdɪsɪˈluːʒn/   /ˌdɪsɪˈluːʒn/  | 
| he / she / it disillusions |    /ˌdɪsɪˈluːʒnz/   /ˌdɪsɪˈluːʒnz/  | 
| past simple disillusioned |    /ˌdɪsɪˈluːʒnd/   /ˌdɪsɪˈluːʒnd/  | 
| past participle disillusioned |    /ˌdɪsɪˈluːʒnd/   /ˌdɪsɪˈluːʒnd/  | 
| -ing form disillusioning |    /ˌdɪsɪˈluːʒnɪŋ/   /ˌdɪsɪˈluːʒnɪŋ/  | 
- disillusion somebody to destroy somebody’s belief in or good opinion of somebody/something
- I hate to disillusion you, but not everyone is as honest as you.