Words that start with A
31 words start with A. Show all words
A
- Abbreviation English
- A shorter way to write a word, like Dr for Doctor.
- Absorb Science
- To soak up or take in, the way a sponge takes in water.
- Acid Science
- A sour-tasting substance such as lemon juice. Strong acids can burn, so never taste unknown liquids.
- Acronym English
- A word made from the first letters of other words, like NASA or ISRO.
- Acute angle Maths
- An angle smaller than a right angle, which is less than 90 degrees.
- Adaptation Science
- A feature that helps a living thing survive where it lives, like a camel's thick eyelashes in the desert.
- Addition Maths
- Putting numbers together to find the total. The sign for it is +.
- Adjective English
- A word that describes a noun, like "red" in "a red ball".
- Adverb English
- A word that tells more about a verb, like how, when or where something happens: "she ran quickly".
- Air Science
- The mixture of gases around us. It is mostly nitrogen, with oxygen that we breathe.
- Algebra Maths
- A part of maths that uses letters to stand for numbers we do not know yet.
- Algorithm Computers
- A set of clear steps to solve a problem or do a job, like a recipe.
- Alkali Science
- A base that dissolves in water, such as soap. It feels slippery and tastes bitter.
- Alliteration English
- Using the same sound at the start of several words, like "big blue balloon".
- Alphabet English
- All the letters of a language in their order. English has 26 letters.
- Amphibian Science
- An animal such as a frog that starts life in water and can live on land as an adult.
- Angle Maths
- The amount of turn between two lines that meet at a point. We measure it in degrees.
- Antonym English
- A word that means the opposite of another word. Hot is the antonym of cold.
- Apostrophe English
- The mark ' used to show that letters are missing, as in "don't", or that something belongs to someone, as in "Ravi's bag".
- App Computers
- A program you use on a phone or tablet, short for application.
- Arc Maths
- A curved part of the edge of a circle.
- Area Maths
- The amount of flat space inside a shape. We measure it in square units such as square centimetres.
- Article English
- The small words "a", "an" and "the" that come before a noun.
- Artificial intelligence Computers
- Computer programs that can do things that normally need human thinking, such as recognising speech.
- Ascending order Maths
- Arranged from the smallest to the biggest, like 2, 5, 9, 14.
- Atmosphere Science
- The layer of air around the Earth.
- Atom Science
- A tiny building block of matter. Everything around us is made of atoms.
- Attachment Computers
- A file sent along with an email.
- Author English
- The person who writes a book, story or article.
- Autobiography English
- A book where a person tells the story of their own life.
- Average Maths
- One number that shows what is typical for a group. To find the mean, add all the numbers and divide by how many there are.