nicker⁴ /nikˈər/

1. A clay marble (also knicker)
2. The round seed of a Caesalpinia (or Guilandina if this is considered a separate genus), used for playing marbles (also nickˈar)

• closed-loop
• close down
• closedown
• closed population
• closed populations
• closed scholarship
• closed scholarships
• closed season
• closed set
• closed sets
• closed shop
• closed shops
• closed syllable
• closed syllables
• close encounter
• close encounters
• close-fisted
• close-fitting
• close-grained
• close-handed
• coccus
• coccygeal
• coccyges
• coccygian
• coccyx