Tangent Meaning in English
word
Definition
A straight line that touches a curve at one point only, without crossing it. Informally, it can also mean a sudden change to a different topic in conversation.
Usage & Nuances
Formal in mathematics and geometry; informal in conversation meaning going 'off on a tangent' (changing topics suddenly). In math, always refers to precise contact at one point. In speech, usually used with phrases like 'go off on a tangent'.
Example Sentences
A tangent touches the circle at only one point.
basic
He loves to talk about math, especially about the tangent of a curve.
basic
Try not to go off on a tangent during your presentation.
basic
We were talking about movies, but then she went off on a tangent about her cat.
natural
The math problem asks for where the line is tangent to the parabola.
natural
Sorry, I went on a tangent—let's get back to the main point.
natural