in touch—in communication or contact with a person:
- Moignon was in touch, on his behalf, with powerful American agencies.
Note: The expression does not correlate in meaning with the phrase at a touch—if touched, however lightly:
- These patio doors slide open at a touch on warm summer days.
within touch—
1. near enough to touch:
- The rough-hewn roof was within touch, and sometimes we had to stoop, to avoid hitting our heads.
2. within easy reach:
- Economic integration brought far-off countries closer. And what yesterday seemed unreality and distant future, today is within touch.