Noun:
1: revenue enhancement, taxation, tax charge against a citizen's person or property or activity for the support of government
Verb:
1: tax levy a tax on; "The State taxes alcohol heavily"; "Clothing is not taxed in our state"
2: tax, assess set or determine the amount of (a payment such as a fine)
3: tax, task use to the limit; "you are taxing my patience"
4: tax make a charge against or accuse; "They taxed him failure to appear in court"