| TOP | a hypothetical quark with a charge of +2/3 and a mass more than 100,000 times that of an electron |
|---|---|
| TOP | roast cut from the round |
| TOP | the highest or uppermost side of anything |
| TOP | computer |
| TOP | (British) excellent |
| TOP | surpassing in quality |
| TOP | unstable by being overloaded at the top |
| TOP | (British) excellent |
| TOP | of the highest rank |
| TOP | surpassing in quality |
| TOP | of the highest rank |
| TOP | the highest official level of classification of documents |