C1 word list: the next 50 words to learn

Sep 14, 2026 · 9 min read

This is the second C1 set, and it picks up exactly where the first 50 C1 words stopped. The first fifty gave you the mechanics of taking a position: to assert, to concede, to justify. These fifty are the words that make a text sound controlled — the ones that separate a firm claim from an overstated one, a cautious conclusion from a confident guess. They are grouped into five sets of ten, each with its part of speech and a plain example sentence.

Why these 50 words come next

At C1 the exam and the workplace stop rewarding long words and start rewarding precision. You are asked to summarise a source without distorting it, to qualify a statement before someone else does, and to say how certain you are and why. Each set below follows one of those jobs, and several words travel in fixed partnerships rather than alone, which is why our guide to collocations treats them as units rather than single items.

There is also a practical reason for a second set. Fifty words is enough to notice a pattern and too few to make it automatic, so learners who stop after one list often recognise formal vocabulary without being able to reach for it while speaking. The five sets here are deliberately narrow: two of them cover reasoning, two cover systems and evidence, and the last covers tone. Work through them in order and the pattern shows up faster than if the same fifty sat in alphabetical order.

Set 1: taking a position (10 words)

Set 2: change and consequence (10 words)

Set 3: evidence and judgement (10 words)

Set 4: work, systems and society (10 words)

Set 5: description, tone and emphasis (10 words)

How to work through these 50 words

One set a week is a realistic pace for most learners, with the previous set revisited briefly on three or four days. Read the word, cover the example, and produce a sentence about your own work or reading before you check the meaning. Putting the word into a partnership helps, because these items rarely travel alone: refute a claim, allocate resources, a tentative conclusion, markedly higher. The same habit sits behind the active recall techniques walkthrough, and the themed abstract ideas and academic word lists give the same vocabulary more contexts to appear in.

How to test yourself on these words

Run two passes. In the first, cover the English and write the word from the meaning or from the example with one gap. In the second, do the reverse and explain the word from the word alone. Only the second pass shows whether the word is available when you are speaking, because recognising a word is far easier than producing it. Words that fail twice go onto a short review card with their example sentence; the keyword mnemonic method suggests what to put on it, and spaced repetition sets the timing for looking again. If the C1 material still feels thin in places, adding the C2 first 50 words alongside it stretches the same skills rather than starting something new, and the B1 next 50 words fill any gaps left lower down.

Frequently asked questions

How is this list different from the C1 first 50 words?

The first fifty covered the backbone of formal argument: asserting, conceding, justifying, undermining. This set pushes into the second layer, the words that make writing sound precise and controlled, so it adds new meaning instead of repeating the same ideas in longer definitions.

Should I finish the B2 and C1 first 50 lists before starting these words?

Working through the B2 and C1 first 50 sets first gives you the concrete vocabulary these words attach to, so each new item has somewhere to sit. If a word here feels hollow, the earlier list is usually the missing piece rather than the definition you need.

How many of these 50 words should I take on in a week?

Ten words, one set, is a comfortable week for most learners, with a short review of the previous set on three or four days. Fifty words at once is readable but rarely usable, because a word is only available for speaking after you have produced it yourself several times.

Is it better to learn these words with flashcards or in sentences?

Use both, in that order. A flashcard is quick for the first pass and tells you whether the meaning is there; a sentence of your own is what shows whether you can use the word. Cards without writing tend to build recognition only, which is the weaker half of vocabulary knowledge.

Where do these 50 words come from?

They were selected by hand from the kind of vocabulary that appears in C1 reading and listening material such as reports, reviews, editorials and longer articles. The set is a curated starting order, not an official examination list, and any published word list for this level will differ in places.

A word list is a starting point, not a shortcut. How quickly a set becomes usable depends on how often you produce the words yourself.