Findings:

• progressive phonological idiom
• simple solar collector
• The Bone Collector
• Automobile License Plate Collectors Association
• Number Plate Collectors' Club
• A Collector of Dreams
• Calling all music collectors! (e2poll)
• Savage Durand, captured by the infamous Ricard, the ball collector
• idiom
• csh history idioms
• Van Dale's English proverbs and idioms
• Doom Collector's Edition
• C/C++ idioms
• cultural idiom
• War-based idioms
• Pimpl Idiom
• Idiom Neutral
• English idiom
• French idioms and proverbs
• Keep the funk alive by talking with idioms
• Idiom Neutral (user)
• The prevalence of Newtonian physics in modern-day English aphorisms and idioms
• American idiom
• British idioms
• Names for Collectors
• toll collector
• Brownian Motion Collector
• open collector
• A joke about tax collectors
• A Collector of Hearts
• garbage collector
• On Killing a Tax Collector
• The Collector
• Baldur's Gate II: Shadows of Amn Collectors Edition
• Jurassic Park / Lost World - Collector's Pack
• Hunters & Collectors
• field data collector
• Collector
• list collector
• coupon collector's problem
• answer: coupon collector's problem
• Rocket's Blast Comic Collector
• collector (user)
• Collector of Words
• The Collector Collector
• dust collector
• Traffic police as revenue collectors
• bill collector
• The Legend of Zelda Collector's Edition
• The American Pencil Collectors Society
• debt collector
• Making of a skull collector

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