Meaning: The horizontal coordinate in a Cartesian coordinate system.

Part of speech: noun

Example: In the graph, the abscissa represents time.

Category: Mathematics › Coordinate Geometry

Synonyms: x-coordinate

Meaning: an angle that is less than 90 degrees

Part of speech: noun

Example: An acute angle is often found in triangles.

Category: Mathematics › Geometry

Synonyms: sharp angle

Meaning: not having a cycle or cycles

Part of speech: adjective

Example: An acyclic graph does not loop back on itself.

Category: Mathematics › Graph Theory

Synonyms: non-cyclic

Meaning: To join something to something else to increase the total.

Part of speech: verb

Example: Please add sugar to your tea.

Synonyms:

• combine
• include

Antonyms:

• subtract
• remove

Meaning: the process of combining numbers or quantities

Part of speech: noun

Example: Addition is one of the basic operations in math.

Category: Mathematics › Arithmetic

Synonyms:

• sum
• total

Antonyms: subtraction

Meaning: Two angles that share a common side and vertex.

Part of speech: noun

Example: The adjacent angles in the triangle are complementary.

Category: Mathematics

Synonyms: neighboring angle

Meaning: A whole formed by combining several elements.

Part of speech: noun

Example: The aggregate of their efforts led to a successful project.

Category: Mathematics › Statistics

Synonyms:

• total
• sum

Meaning: A portion of a larger whole, especially in a mathematical context.

Part of speech: noun

Example: An aliquot of the solution was taken for testing.

Category: Mathematics › Arithmetic

Synonyms:

• portion
• fraction

Meaning: Angles that are opposite each other when two lines are crossed by another line.

Part of speech: noun

Example: The alternate angles are equal in measure.

Category: Mathematics › Geometry

Meaning: The total quantity of something.

Part of speech: noun/verb

Example: The amount of water in the bottle is low.

Synonyms:

• quantity
• total

Meaning: The space between two intersecting lines or surfaces.

Part of speech: noun

Example: The angle of the triangle is 90 degrees.

Category: Mathematics

Synonyms:

• corner
• slant

Antonyms: straight

Meaning: Having angles or sharp corners.

Part of speech: adjective

Example: The building had an angular design.

Category: Mathematics

Synonyms:

• sharp
• pointed

Antonyms:

• smooth
• rounded

Meaning: An estimate or near calculation.

Part of speech: noun

Example: The approximation of the distance was helpful.

Category: Mathematics

Synonyms:

• estimate
• rough calculation

Meaning: The ten symbols used to represent numbers (0-9).

Part of speech: noun

Example: Arabic numerals are used worldwide.

Category: Mathematics › Numerals

Synonyms:

• digits
• numbers

Meaning: A part of the circumference of a circle.

Part of speech: noun

Example: The arc of the rainbow was beautiful.

Category: Mathematics

Synonyms:

• curve
• bend

Meaning: The branch of mathematics dealing with the properties and manipulation of numbers.

Part of speech: noun

Example: Arithmetic is fundamental to all areas of math.

Category: Mathematics

Synonyms:

• math
• calculation

Meaning: The average of a set of numbers, calculated by dividing the sum of the numbers by the count of numbers.

Part of speech: noun

Example: To find the arithmetic mean, add all the numbers and divide by how many there are.

Category: Mathematics

Synonyms:

• average
• mean

Meaning: A sequence of numbers in which the difference between consecutive terms is constant.

Part of speech: noun

Example: In an arithmetic progression, the next number can be found by adding the same value.

Category: Mathematics

Synonyms:

• number sequence
• series

Meaning: Relating to arithmetic; numerical.

Part of speech: adjective

Example: The arithmetical calculations were complex.

Category: Mathematics

Synonyms:

• numerical
• mathematical

Meaning: In a manner relating to arithmetic.

Part of speech: adverb

Example: The numbers were added arithmetically.

Category: Mathematics

Meaning: The result obtained by adding several quantities together and dividing by the number of quantities.

Part of speech: noun

Example: The average of the test scores was 75%.

Category: Mathematics › Statistics

Meaning: To calculate the average of a set of numbers.

Part of speech: verb

Example: We need to average out the scores to find the winner.

Category: Mathematics › Statistics

Meaning: One part in a billion; the ordinal form of billion.

Part of speech: noun

Example: He finished in the billionth place in the race.

Category: Mathematics

Synonyms:

• 1/1
• 000
• 000
• 000

Meaning: A mathematical expression consisting of two terms.

Part of speech: noun

Example: The expression 'x + y' is a binomial.

Category: Mathematics

Synonyms: two-term expression

Meaning: To divide something into two equal parts.

Part of speech: verb

Example: You can bisect the angle with a ruler.

Category: Mathematics

Meaning: The distance or measurement from side to side.

Part of speech: noun

Example: The breadth of the table is two meters.

Category: Mathematics › Geometry

Synonyms:

• width
• extent

Antonyms:

• length
• narrowness

Meaning: Able to be calculated or estimated.

Part of speech: adjective

Example: The risks are calculable with proper analysis.

Category: Mathematics

Synonyms:

• measurable
• estimable

Meaning: To determine a number or amount mathematically.

Part of speech: verb

Example: You need to calculate the total cost.

Category: Mathematics

Synonyms:

• compute
• reckon

Meaning: The process of determining a number or amount.

Part of speech: noun

Example: The calculation took longer than expected.

Category: Mathematics

Synonyms:

• computation
• estimation

Meaning: A branch of mathematics dealing with rates of change.

Part of speech: noun

Example: Calculus is essential for advanced physics.

Category: Mathematics

Synonyms:

• math
• analysis

Meaning: A number that represents quantity, such as one, two, or three.

Part of speech: noun

Example: The cardinal number for three is 3.

Category: Mathematics

Synonyms: counting number

Meaning: A prefix meaning one hundredth.

Part of speech: prefix

Example: Centimeter is a unit of length equal to one hundredth of a meter.

Category: Mathematics › Measurement

Meaning: A round shape where every point is the same distance from the center.

Part of speech: noun

Example: She drew a perfect circle on the paper.

Category: Mathematics › Geometry

Synonyms:

• ring
• loop

Meaning: Having the shape of a circle.

Part of speech: adjective

Example: The table has a circular design.

Category: Mathematics › Geometry

Synonyms:

• round
• ring-shaped

Meaning: The distance around a circle.

Part of speech: noun

Example: To find the circumference, multiply the diameter by pi.

Category: Mathematics › Geometry

Synonyms: perimeter

Meaning: A numerical or constant quantity placed before a variable in an algebraic expression.

Part of speech: noun

Example: In the equation, 2 is the coefficient of x.

Category: Mathematics › Algebra

Meaning: Occurring at the same time or place.

Part of speech: adjective

Example: Their paths were coincident at the intersection.

Category: Mathematics › Geometry

Meaning: Relating to a mathematical property where the order of operations does not change the result.

Part of speech: adjective

Example: Addition is a commutative operation.

Category: Mathematics › Algebra

Meaning: Two angles that add up to 90 degrees.

Part of speech: noun

Example: In a right triangle, the two non-right angles are complementary angles.

Meaning: A number that has both a real part and an imaginary part.

Part of speech: noun

Example: In mathematics, a complex number can be expressed as a + bi.