nugget /nugˈit/

1. A lump, esp of gold
2. Anything small but valuable (figurative)

• obstetrician
• obstetricians
• obstetrics
• obstinacies
• obstinacy
• obstinate
• obstinately
• obstinateness
• obstinatenesses
• obstipation
• obstipations
• obstreperate
• obstreperated
• obstreperates
• obstreperating
• obstreperous
• obstreperously
• obstreperousness
• obstriction
• obstrictions
• obstropalous
• obstropulous
• obstruct
• obstructed
• obstructer