# Definitions and Synonyms of *diagonal* | Another word for *diagonal* | What is *diagonal? *

*Definition 1: a punctuation mark (/) used to separate related items of information - [noun denoting communication]*

*Synonyms for diagonal in the sense of this definition*

*(**diagonal* is a kind of ...) the marks used to clarify meaning by indicating separation of words into sentences and clauses and phrases

*diagonal*is a kind of ...) the marks used to clarify meaning by indicating separation of words into sentences and clauses and phrases

*Definition 2: an oblique line of squares of the same color on a checkerboard - [noun denoting group]*

*Samples where diagonal or its synonyms are used according to this definition*

*the bishop moves on the diagonals*

*(**diagonal* is a kind of ...) a formation of people or things one behind another

*diagonal*is a kind of ...) a formation of people or things one behind another

### (

### (... is a kind of

### (... is a kind of

### (... is part of

*"the line stretched clear around the corner"**"you must wait in a long line at the checkout counter"*### (*diagonal* is a kind of ...) a formation of people or things one beside another

*"the line of soldiers advanced with their bayonets fixed"**"they were arrayed in line of battle"**"the cast stood in line for the curtain call"*### (... is a kind of *diagonal* ) the diagonal of a square matrix running from the upper left entry to the lower right entry

### (... is a kind of *diagonal* ) the diagonal of a square matrix running from the lower left entry to the upper right entry

### (... is part of *diagonal*) a board having 64 squares of two alternating colors

*Definition 3: (mathematics) a set of entries in a square matrix running diagonally either from the upper left to lower right entry or running from the upper right to lower left entry - [noun denoting group]*

*(**diagonal* is a kind of ...) (mathematics) an abstract collection of numbers or symbols

*diagonal*is a kind of ...) (mathematics) an abstract collection of numbers or symbols

### (... is part of

*"the set of prime numbers is infinite"*### (... is part of *diagonal*) a matrix with the same number of rows and columns

*(diagonal* belongs to category ...) a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement

## Definition 4: a line or cut across a fabric that is not at right angles to a side of the fabric - [noun denoting shape]

### Synonyms for diagonal in the sense of this definition

### (*diagonal* is a kind of ...) a line traced by a point traveling in a constant direction; a line of zero curvature

*"the shortest distance between two points is a straight line"*

## Definition 5: (geometry) a straight line connecting any two vertices of a polygon that are not adjacent - [noun denoting shape]

### (*diagonal* is a kind of ...) a line traced by a point traveling in a constant direction; a line of zero curvature

*"the shortest distance between two points is a straight line"*

### (diagonal belongs to category ...) the pure mathematics of points and lines and curves and surfaces

## Definition 6: having an oblique or slanted direction - [adjective satellite denoting all]

## Definition 7: connecting two nonadjacent corners of a plane figure or any two corners of a solid that are not in the same face - [adjective satellite denoting all]

### Samples where diagonal or its synonyms are used according to this definition

*a diagonal line across the page*

### (*diagonal* is similar to ...) slanting or inclined in direction or course or position--neither parallel nor perpendicular nor right-angled

*"the oblique rays of the winter sun"*

*"acute and obtuse angles are oblique angles"*

*"the axis of an oblique cone is not perpendicular to its base"*