Englishfor English speakers
tangent
—
noun
a straight line or plane that touches a curve or curved surface at a point but does not intersect it at that point
—
noun
ratio of the opposite to the adjacent side of a right-angled triangle
basis
Noun
—
The basis of something, is the main ideas or parts that it is built on.
On the basis of the information available, we have decided to cancel the project.
There is no basis for believing that he was killed.
Her experiences in Cambodia formed the basis for her first book.
—
If something happens on a regular/daily/weekly etc. basis, it happens regularly, daily, etc.
The problems are now happening on a very regular basis.
—
If we are on a first-name basis, we use first names when speaking to each other.
Josie Parkinson and I are on a first-name basis. I call her "Josie" when I see her.