WordWeb Online

1. (of a task) requiring hard or challenging work
   "a taxing schedule";
   - burdensome, onerous

1. Levy a tax on
   "The State taxes alcohol heavily"; "Clothing is not taxed in our state"
    
2. Set or determine the amount of (a payment such as a fine)
   - assess
    
3. Use to the limit
   "you are taxing my patience";
   - task
    
4. Make a charge against or accuse
   "They taxed him failure to appear in court"

See also: heavy

Type of: charge, determine, extend, impose, levy, set, strain

Encyclopedia: Tax, tariff and trade