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Comparisons [O]
Outdegree vs. Indegree
Orphan vs. Waif
Opinion vs. Advice
Outfield vs. Infield
Optimization vs. Simulation
Oversight vs. Oversite
Octothorn vs. Octothorpe
Offspring vs. Progeny
Oblation vs. Ablation
Ontic vs. Ontology
Overalls vs. Dungaree
Organogram vs. Organigram
Oracle vs. Seer
Opinion vs. Argument
Once vs. Ones
Overview vs. Background
Onager vs. Trebuchet
Oblong vs. Oval
Offsite vs. Onsite
Ok vs. Ko
Osteoporosis vs. Osteomyelitis
Overperformed vs. Overperformer
Oriented vs. Orientated
Oedema vs. Edema
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