'Boycott' can be a noun or a verb.
Boycott BrE/ˈbɔɪkɒt/ NAmE/ˈbɔɪkɑːt/
verb transitive
boycott something to refuse to buy, use or take part in something as a way of protesting
People plan on boycotting products from companies which use child labor.
Somebody encourages common people to boycott American goods.
Years ago, teachers in my hometown boycotted classes because their salaries weren't paid.
Boycott BrE/ˈbɔɪkɒt/ NAmE/ˈbɔɪkɑːt/
noun countable
— often + of, against, or on
the country's boycott of the language policy
a boycott against/on the company's products
The US has imposed/introduced a boycott on/against some country's products.
Word Origin
from the name of Captain Charles C. Boycott (1832–97), an Irish land agent treated in this way in 1880, in an attempt instigated by the Irish Land League to get rents reduced.
