We found 4 dictionaries that define the word twin sister:

General (3 matching dictionaries)

1. twin sister: Merriam-Webster
2. twin-sister: Wordnik
3. The Twin Sister, Twin Sister: Wikipedia, the Free Encyclopedia

Slang (1 matching dictionary)

4. twin sister: Urban Dictionary

Phrases: Lists of twin towns and sister cities, Mr Twin Sister, twin sister of apollo, more... ▸ Words similar to twin sister ▸ Usage examples for twin sister ▸ Idioms related to twin sister ▸ Wikipedia articles (New!) ▸ Words that often appear near twin sister ▸ Rhymes of twin sister ▸ Invented words related to twin sister