| DIR | English theoretical physicist who applied relativity theory to quantum mechanics and predicted the existence of antimatter and the positron (1902-1984) |
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| DIR | deciduous shrub of North America: leatherwood |
| DIR | deciduous shrub of eastern North America having tough flexible branches and pliable bark and small yellow flowers |
| DIR | causing fear or dread or terror |
| DIR | fraught with extreme danger |
| DIR | a state of extreme distress |
| DIR | plan and direct (a complex undertaking) |
| DIR | specifically design a product, event, or activity for a certain public |
| DIR | command with authority |
| DIR | give directions to |
| DIR | put an address on (an envelope, for example) |
| DIR | intend (something) to move towards a certain goal |