1. noun /tæks/
a) Money paid to the government other than for transaction-specific goods and services.
b) A burdensome demand.
2. verb /tæks/
a) To impose and collect a tax from (a person).
Some think to tax the wealthy is the fairest.
b) To impose and collect a tax on (something).
Some think to tax wealth is destructive of a private sector.
Wikipedia foundation.