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  1. Semicentennial Definition & Meaning - Merriam-Webster

  2. SEMICENTENNIAL Definition & Meaning - Dictionary.com

  3. United States Semiquincentennial - Wikipedia

  4. semicentennial - Wiktionary, the free dictionary

  5. SEMICENTENNIAL definition in American English - Collins Online …

  6. Semicentennial - definition of semicentennial by ... - The Free …

  7. Semicentennial - Definition, Meaning & Synonyms

  8. Semicentennial Definition & Meaning - YourDictionary

  9. semicentennials - Wiktionary, the free dictionary

  10. 在"英语"词典里semicentennial}的意思 - educalingo