[sem-ee-muhnth-lee, sem-ahy-] 
adjective, noun, plural -lies, adverb | 1. | made, occurring, done, or published twice a month. |
| 2. | something occurring every half month or twice a month. |
| 3. | a semimonthly publication. |
| 4. | twice a month: We went semimonthly to see her. |
| sem·i·month·ly (sěm'ē-mŭnth'lē, sěm'ī-) adj. Occurring or issued twice a month. n. pl. sem·i·month·lies A semimonthly publication. adv. At intervals twice monthly. See Usage Note at bi-1. |
iˈmʌnθ