1. in a straight line without changing direction or stopping
2. without anyone or anything else being involved; personally
3. immediately; right away

Examples

• The plane flew directly to Chicago without any stops.
• She looked directly at me when she spoke.
• Please call me directly if you have any problems.
• The CEO spoke directly to the employees about the changes.
• I’ll go directly home after work.
• He answered the question directly without hesitation.
• The sun shone directly through the window.
• She reported directly to the manager.