broadening of the tax base

broadening

— noun (= widening) the act of making something wider — noun the action of making broader the broadening of travel — noun (= widening) an increase in width

of Preposition

— Made using. It is a house of cards.

the Determiner

— Used, instead of a, to reference something specific, already known to exist. Compare "I read a book." and "I read the book." — Used with a stress, to show that the word following is special. Are you the John Smith that I went to school with? — Used with an adjective that acts like a noun to mean all of the people concerned The poor are always with us. — Used with superlatives forms of adjectives and adverbs. You are the best.

tax Verb

— Make to pay a tax. Some people say governments tax poor people too much. — Cause difficulty for; make tired.

base Noun

— Something's base is its lower part; the solid part that touches the floor or touches the earth and keeps the other parts of the thing up. — Something's base is its most important part. — A base is a building for military personnel and material.

base Adjective

— Rude, unfair, or unkind. The people who make those sex videos are really base.

base Verb

— When something or someone is based in a place, they do most of their work in that place. The airline is based in Toronto, but flies all over the world. — If you base x on y, you build or make x on, using, or to be like y. The movie is based on the book.