mad-apple /madˈa-pl/

1. An aubergine
2. The Dead Sea apple (see under apple)
3. A gallnut produced by the Asiatic gall wasp (Cynips insana)

• one-armed bandit
• on earth
• one by one
• one day
• one-day
• on edge
• one-dimensional
• one-er
• one-eyed
• one fell swoop
• one flesh
• onefold
• one for his nob
• one for the road
• one-handed
• one-horse
• one-horse race
• one-horse races
• one-idea'd
• one in a million
• one in a thousand
• one in the eye
• oneiric
• oneirocritic
• oneirocritical