Definition of soliloquize in US English:

soliloquize

(British soliloquise)

verb

[no object]
  • Speak one's thoughts aloud when by oneself or regardless of any hearers; utter a soliloquy.

    ‘they are prone to soliloquize at length’

Pronunciation

soliloquize

/səˈliləˌkwīz//səˈlɪləˌkwaɪz/