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.