Language term
Compound sentence
Two or more main clauses joined by a connective such as and, but or so.
What it means
A compound sentence joins two or more main clauses, each able to stand alone. It uses a coordinating connective such as and, but, or, so or yet, or sometimes a semicolon. Both clauses have equal weight, so a compound sentence links related ideas or balances them against each other, as in she wanted to stay, but the train was leaving.
Compound sentences let a writer connect thoughts smoothly and show relationships such as addition or contrast. Handled well, they add flow and balance; strung together carelessly, they can make writing feel repetitive.
Why it matters in the exam
In the reading paper, recognising compound sentences helps you comment on how a writer links or balances ideas. In your own writing, use compound sentences correctly, with the right connective and punctuation. This shows control of structure, and examiners reward a varied mix of sentence types.
Knowing the difference between compound and complex sentences also helps you avoid errors such as the comma splice when joining clauses.
Example
"The rain had stopped, but the streets still gleamed, and a cold wind pushed the last clouds away" links three equal ideas smoothly into one flowing sentence.
How to use it
In analysis, note how a compound sentence balances or links ideas. Comment on the connective the writer chooses, such as but for contrast. In your own writing, join related main clauses with a suitable connective and correct punctuation.
Vary your sentences so you do not rely only on and. This variety is exactly what mark schemes reward.
Knowing the term is the first step. In a paid one-hour trial, a teacher helps your child use "Compound sentence" accurately in an answer.