Englishfor English speakers
virtually
Adverb
—
Just about; almost but not quite
Once you put it on, it is virtually impossible to remove.
Car theft became so common that private cars virtually disappeared from the area.
invertible
—
adjective
having an additive or multiplicative inverse
element
Noun
—
An element is one part of something bigger, such as a plan, an engine, or a business.
He's the best salesman on our team, but he's only one element in our success.
—
An element is one basic kind of substance, such as iron (Fe) oxygen (O) or sodium (Na).
Water is made up of two elements: Hydrogen and Oxygen.