How Many New English Words Should You Learn a Day?

For most learners, five to ten new English words a day is the right number. It sounds small, but the limit isn't how many words you can look at today. It's how many you can still review next week and next month. Pick the number you can keep up on a busy day, and you'll learn more in a year than someone who tries for fifty and stops after two weeks.

Below is a way to work out your own number, and what to do when it turns out to be too high.

The real limit is reviews, not new words

A word isn't learned on the day you meet it. You need to pull it out of memory several times over the following weeks, with longer gaps each time. A simple schedule is: test yourself the next day, again about a week later, and again about a month later.

Now count what that means. If you add ten new words every day, then after the first month every day brings:

• 10 new words,
• 10 words from yesterday,
• 10 words from last week,
• 10 words from last month.

That's 10 new words and about 30 reviews a day, plus the words you got wrong and have to see again. The rule of thumb is simple: your daily reviews are about three times your daily new words.

So twenty new words a day means about sixty reviews a day. A hundred a day means three hundred reviews, every day, for as long as you continue. That's why plans built on big numbers collapse in the second or third week. The new words were never the problem. The reviews arrived.

What different numbers add up to

Small numbers look weak on one day and strong over a year:

New words a day	In a month	In a year
3	about 90	about 1,100
5	about 150	about 1,800
10	about 300	about 3,650
20	about 600	about 7,300

These totals are only real if you keep the words, and you only keep them if the reviews get done. Five words a day, reviewed, gives you around 1,800 words in a year. Twenty words a day with no reviews gives you a long list you once looked at.

How to pick your number

Start from the time you have on a normal day, not on your best day.

• About 10 minutes: 3 to 5 new words.
• About 15 to 20 minutes: 5 to 10 new words.
• 30 minutes or more: 10 to 15 new words, and only go to 20 if you've already kept a smaller number going for a month.

Then check what "a new word" costs you. Learning a word properly means reading it in a sentence, noticing the words around it, and writing one sentence of your own. That takes a minute or two for each word. If you're only reading a word and its translation, you can "do" fifty in ten minutes, but very little of it will still be there on Friday.

Your level matters as well. Beginners should stay at the low end, because almost every word is new and the words look alike. If you're intermediate and you're adding words you've half-met before, you can go a little higher.

One more test: run your number for two weeks. If your reviews are finished most days and you're getting most of them right, the number is fine. If not, it's too high.

Signs your number is too high

• You have reviews left over at the end of most days.
• You get more than about a third of your reviews wrong.
• You recognise a word but can't say what it means without the sentence.
• You skip a day because the pile looks too big, and then it's bigger.

When you see these, cut new words first, never reviews. Go down to three a day, or stop adding words for a few days and only review. The words already in your system are worth more than the ones you haven't met yet.

What counts as a word learned

It's easy to count the wrong thing. Looking at a word doesn't count. A word is learned when you can do three things without help:

1. Say what it means when you see or hear it.
2. Produce it when you need that meaning.
3. Put it in a correct sentence: "I'm used to getting up early," not "I'm used to get up early."

Measure your day by this, and ten words is a full day's work. The steps for getting a word to that point are in how to remember new English words.

What a ten-word day looks like

A fifteen-minute session for someone learning ten words a day. The three rules use always, usually and never on purpose; if their position in a sentence is new to you, see adverbs of frequency.

• Reviews first (8 minutes). You always start with the words that are due. Answer before you look. Wrong answers go back to tomorrow.
• New words second (6 minutes). You usually add ten, each with its sentence. On a bad day, add five, or none.
• One word out loud (1 minute). You never finish without using one of today's words in a sentence about your day.

Reviews come first because they're the part that's tempting to skip. If time runs out, it should run out on the new words.

Where do the new words come from? The best ones are words you met today: in an article, a video, a meeting. They already have a context. The guide to keeping a vocabulary notebook shows how to choose which of them are worth writing down.

If you miss a few days

Everyone does. When you come back:

1. Don't try to "catch up" on the new words you missed. They're gone, and that's fine.
2. Do the reviews that are due, even if it takes two or three sessions.
3. Add new words again only when the review pile is back to normal.

A plan you return to after a break is worth more than a perfect plan you abandon.

Recap

• Five to ten new words a day suits most learners. Beginners can start with three to five.
• Expect about three reviews a day for every daily new word.
• Choose a number for a normal day, then test it for two weeks.
• If reviews pile up, cut new words, not reviews.
• Count a word only when you can recall it and use it in a sentence.