We found 3 dictionaries that define the word only one:

General (1 matching dictionary)

1. Only One (BoA album), Only One (BoA song), Only One (Goo Goo Dolls song), Only One (Kanye West song), Only One (Shinhwa album), Only One (Sigala song), Only One (U-KISS album), Only One (Yellowcard song), Only One, The Only One (Kenny Barron album), The Only One (Scooter song), The Only One (The Cure song), The Only One (Transvision Vamp song), The Only One: Wikipedia, the Free Encyclopedia

Miscellaneous (1 matching dictionary)

2. Encyclopedia of Graphic Symbols (No longer online)

Slang (1 matching dictionary)

3. Only One: Urban Dictionary

Phrases: only one thing for it, Hitler Has Only Got One Ball, I'm Not the Only One, I'm the Only One, H to He, Who Am the Only One, more... ▸ Words similar to only one ▸ Usage examples for only one ▸ Idioms related to only one ▸ Wikipedia articles (New!) ▸ Words that often appear near only one ▸ Rhymes of only one ▸ Invented words related to only one