Discourse Markers & Cohesion

You have finished a paragraph, you read it back, and something clanks. Every sentence is correct on its own, but they sit in a row like lockers that do not open into each other. You can feel that the next bit belongs with the last one, but the page does not show it. Good writing flows because little signpost words guide the reader from one idea to the next - words like however, so, firstly, on the other hand. They are called discourse markers, and they turn a pile of separate sentences into a smooth, connected piece.

Here is the reassuring part: the toolkit is small, and you already use a rough version of it whenever you talk. You do not tell a friend "I ran. I fell. I laughed." You stitch it together: "I ran, but I fell, and then I laughed." On the page we just make those choices a bit more deliberate. Once you can name the main jobs these words do, you stop guessing and start choosing.

What they do

A discourse marker tells the reader how the next bit relates to the last bit. It is a little promise about the connection that is coming. Three jobs matter most:

• Adding more: also, furthermore, what's more
• Contrasting (a twist or an opposite): however, on the other hand, but
• Showing a result: so, therefore, as a result
• Ordering steps: first, next, finally
• Giving an example: for example, such as

It rained all day. However, we still had fun. → However warns the reader that a contrast is coming before they even read it.

Why they matter

Without signposts, writing feels like a list of unrelated facts and the reader has to do all the joining-up in their own head. With them, the reader always knows where they are:

• ✗ The trip was long. We were tired. We enjoyed it.
• ✓ The trip was long, so we were tired. Even so, we enjoyed it.

The linking words make the cause and the contrast visible - the ideas now click together instead of just sitting side by side. That is the whole trick: a marker is a promise to the reader about how the next bit connects, so make sure it tells the truth. A marker that lies is worse than none at all. It rained; therefore I had toast only makes sense if toast somehow causes the weather. If the second idea does not really follow from the first, therefore is a broken promise, and a thoughtful reader will notice.

A second angle: signposts are not the only glue

Here is something most people miss. Cohesion - the fancy word for "hanging together" - is bigger than the marker at the front of a sentence. Two quieter tricks do a lot of the real joining, and they never cost a signpost word at all.

The first is repetition of a key word. If your subject is plastic waste, do not lurch about between rubbish, pollution, debris and stuff until the reader loses the thread. Echo the same idea with gentle variation - plastic waste... this waste... the problem - so the topic stays visible. Swapping in a fresh synonym every line does not sound clever; it just makes the reader work out, again and again, what you are talking about.

The second is parallelism, which means shape-matching - lining up ideas of equal weight in the same grammatical form. We need to cut waste, protect forests, and fund green transport. Three matched verbs; once your ear catches the pattern, it wants the pattern finished. That is cohesion built into the shape of the sentence, without a single "signpost" word. The classic slip is breaking the pattern halfway: I enjoy reading, to play games, and watching films jars, whereas reading, playing games, and watching films clicks.

Watch out: the punctuation, and over-marking

Two things trip people up. First, punctuation. Many discourse markers at the start of a sentence take a comma straight after them: Firstly, ... · However, ... · For example, ... And here is the big one: however is not a joining word like but. You cannot glue two sentences together with just a comma before it. Use a full stop or a semicolon: It rained. However, we went out.

Second, and even more common, is over-marking. When you open nearly every sentence with Furthermore... Moreover... Additionally... Therefore..., the connectors get louder than the point, and the writing sounds padded and a bit desperate. Real, confident cohesion often hides. So finish your paragraph, then cover every marker with your finger. If the flow still makes sense without them, those markers were just decoration - put back only the ones doing a genuine job.

Why it matters

"Choppy" and "over-signposted" are two of the most common notes on school essays, and they pull in opposite directions - which is exactly why getting the balance right marks your writing out as controlled. A well-placed however or so guides a marker smoothly through your argument; a paragraph with none leaves them stranded, and a paragraph with one on every line exhausts them. You need far fewer markers than you think, but the right ones, in the right places. Master that, and your writing stops feeling like a stack of facts and starts feeling like a single, joined-up piece of thinking.

Quick check

Choose a linking word:

1. I revised hard. ___ , I passed. (result)

2. The film was long. ___ , it was gripping. (contrast)

3. Fix the punctuation: It was cold, however we still swam.

4. Cut the over-marking to one real marker: Furthermore, cycling is healthy. Moreover, it is cheap. Additionally, it is green.

5. Fix the parallelism: The club wants members to turn up, being polite, and that they help.

Where next

• Conjunctions: The Joining Words — the close cousins of discourse markers.
• Conjunctive Adverbs vs Conjunctions — why however punctuates differently from but.
• Clarity and Concision — smooth, connected writing.