WordWeb Online

1. Give away information about somebody
   "He told on his classmate who had cheated on the exam"
   - denounce, betray, give away, rat, grass, shop, snitch, stag
    
2. Produce an effect or strain on somebody
   "Each step told on his tired legs"

Derived forms: told on, telling on, tells on

Type of: affect, bear on, bear upon, impact, inform, touch, touch on