 |
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| bo-peep (гра в схованки з дитиною); peek-a-boo (гра у схованки); peek-bo (гра у схованки) | |||
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| cuckoo | |||
| ку-ку: 227 phrases in 15 subjects |
| American usage, not spelling | 1 |
| Aviation | 143 |
| Chemistry | 1 |
| Diplomacy | 12 |
| Economy | 22 |
| Fantasy and science fiction | 2 |
| General | 15 |
| Informal | 2 |
| Information technology | 1 |
| Law | 3 |
| Military | 4 |
| Nanotechnology | 1 |
| Oil and gas | 2 |
| Proverb | 17 |
| Space | 1 |